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Idli Sambhar Casserole is a simplified spin on traditional Idli Sambar –ย a layered casserole! With Sambar split pea stew and savory Semolina Rava idli layered and baked! Fewer pans and fewer steps. Gluten-free option

a piece of Idli Sambhar Casserole on a white plate

I am back at my favorite cooking challenge: turning traditional Indian food into easier casseroles. Some Indian dishes can take a lot of preparation work and cooking time. For Eg, making south Indian Idli (rice lentil cakes) is a 2-day process. Soak the rice and lentils, blend, ferment and then we use the batter to make steamed cakes -idli or crepes -dosa, or other sides.

Vegan Idli sambar casserole in a glass casserole dish

When in a hurry I often make Rava idli that uses coarse semolina (cream of wheat). The Rava idli batter takes just 10 mins to prep, then 15 mins to steam. Idlis are often served with sambar ( split pea stew).

But Instead of making the idli and sambar separately, and using up multiple pans, I converted the two recipes into a layered casserole dish! The Sambar is baked right into the casserole dish. So only 1 baking dish to wash up later!

a piece of Idli Sambhar Casserole on a white plate

This sambar here is quite a bit thicker than the traditional version. That is necessary so that the idli batter on top doesnโ€™t sink in. I also add quinoa to the sambar to up the protein and to keep the sambar thick.

Once the lentils are cooked, add the idli batter on top, bake again and serve it like a shepherd’s pie!

There are of course more steps in this recipe and spices(often repeated spices for both layers). These are necessary for the traditional flavor. But you can skip some steps for a quicker and still very delicious result!

why youโ€™ll love this idli sambar casserole!

  • Fewer pans
  • Less steps
  • enjoy the authentic Southern Indian flavors in a casserole form!
  • Itโ€™s Soyfree and can be made Nutfree and gluten-free.

More vegan casserole dishes:

Shahi Tofu Kofta Casserole

Baked Kitchari Casserole (Spiced Lentil Rice Casserole)

Vegan Lentil Shepherds Pieย 

Saag Cornbread Casserole

Idli Sambhar Casserole(South Indian Split Pea stew Semolina bread bake)

5 from 5 votes
By: Vegan Richa
Prep: 15 minutes
Cook: 1 hour
Total: 1 hour 15 minutes
Servings: 6
Course: dinner
Cuisine: Indian
Idli Sambhar Casserole is a simplified spin on traditional Idli Sambar - a layered casserole! With Sambar split pea stew and savory Semolina Rava idli layered and baked! ! Fewer pans and fewer steps. Gluten-free option ย 
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Ingredients 
 

For the sambar stew

  • 1 tsp oil
  • 1/2 teaspoon mustard seeds
  • 6 curry leaves, fresh or frozen or dried
  • 2 Dried red chilies, such a large cayenne or Indian
  • 1/2 cup toor dal, - split pigeon pea or use moong dal (petite yellow lentils) or masoor dal( split red lentils)
  • 1/4 cup quinoa,, optional
  • 1/4 cup chopped onion
  • 1 tomato, chopped
  • 1 cup chopped veggies, such as carrots peppers green beans
  • 2 tsp ground coriander, , preferably dry toasted on a skillet until fragrant
  • 3 tsp sambar masala, see notes for substitute
  • 1/4 tsp turmeric
  • 1/4 tsp cayenne
  • 1 tbsp tamarind chutney or tamarind pulp
  • 2.5 cups water
  • 1/2 teaspoon salt

For the rava idli

  • 2 tsp oil
  • 1/2 teaspoon mustard seeds
  • 1/4 teaspoon cumin seeds
  • 1 teaspoon chopped ginger
  • 1 green chili chopped
  • 10 curry leaves, , fresh, frozen or dried
  • 3 tablespoons chopped raw cashews, or peanuts
  • 1/2 cup rava/sooji (coarse semolina)
  • 1/2 teaspoon salt
  • 1/4 tsp baking soda
  • 3 tablespoons chopped cilantro
  • 1/3 cup non dairy yogurt
  • 1 tsp lemon juice
  • 1/2 cup water

Garnish

  • lemon juice, cilantro for garnish

Instructions 

  • Make the tempering for sambar. Heat the oil in a small skillet. Once hot add the mustard seeds and then wait for them to start popping or change color. Then add curry leaves and red chilies and mix well. Then switch off the heat.
  • Add this tempering to 9 x 9โ€œ or a similar size baking dish. Then add the rest of the ingredients under Sambar and mix well and even them out.
  • Cover the baking dish with the parchment and put it in a preheated oven at 400ยฐF / 205c for 35 to 45 minutes. The exact time depends on the lentils used.
  • In the meanwhile, make the Rava idli batter: (see notes to use store bought idli/dosa batter) Heat the same skillet over medium heat , add the oil. Once the oil is hot add the mustard seeds and cumin seeds, and wait for them to change colors significantly. Add the curry leaves, and cashews and mix well then add the ginger and green chili and continue to cook for a minute. Then add in the semolina and continue to roast For 3 to 4 minutes or until fluffy and toasty. Then take off heat.
  • Transfer this mixture to a bowl. Add cilantro, baking soda, salt and mix in. Then add in the yogurt, lemon juice and water and mix in. Letโ€™s sit for 10 minutes. If the batter has thickened too much then you can add another few tablespoons of water until mixture is a spreadable consistency.
  • Take the baking dish out of the oven. Then spread this semolina mixture over the stew and even it out. Then cover with parchment (important) and put it back into the oven for 11 minutes. Check as a 10 minute mark if the center is cooked through then take the dish out of the oven. Drizzle some lemon juice and cilantro on top and serve.

Video

Notes

Make the sambar in the saucepan: Prepare the tempering in the saucepan over medium heat , then add onion and cook until translucent. Then add the rest of the ingredients, partially cover and cook for 20- 45 mins(depending on the lentils used) . Then transfer to the baking dish. Top with the idli batter, cover with parchment and bake.ย 
Sambar masala substitute: use 2 tsp ground coriander, 1:/4 teaspoon cayenne and 1/4 teaspoon ground fenugreek or mustardย 
Store bought it homemade idli dosa batter: Use 1 1/2 cup batter. Add 1/2 tsp baking powder, salt if needed and mix in. You can also add 1/4 cup finely chopped veggies or cilantro etc. Spread over sambar, cover with parchment and bake for 12-14 mins.ย 
  • ย Nut free omit the cashews
  • Gluten-free, use rice rava(coarse rice flour) or use a rice lentil idli batter.

Nutrition

Calories: 225kcal, Carbohydrates: 35g, Protein: 10g, Fat: 6g, Saturated Fat: 1g, Sodium: 487mg, Potassium: 445mg, Fiber: 8g, Sugar: 4g, Vitamin A: 2032IU, Vitamin C: 85mg, Calcium: 64mg, Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this recipe? Rate and comment below!

ingredients for making Idli Sambar casserole

Ingredients:

  • sambar tempering: Mustard seeds, curry leaves, chilies, such a large cayenne or Indian
  • the sambhar is made with toor dal(split pigeon pea) or use moong dal or use split red lentils and you can also add some quinoa (optional)
  • veggies: chopped onion, tomato and veggies of choice
  • ground spices: ground coriander, ย sambar masala, turmeric andย cayenne
  • tamarind chutney or pulp lends the lentil stew its signature tanginess
  • For the second tempering (rava idli) we fry mustard seeds and cumin seeds in hot oil along with ginger, green chiliย  and curry leaves
  • for the idli base, we add chopped cashews and rava/sooji aka coarse semolina,
  • yogurt and lemon juice are added to bring the rava idli batter together
  • baking soda is added for the rise

Tips:

  • if you cannot find fresh curry leaves you can use dried ones.
  • To make this nut free omit the cashews
  • to make this Glutenfree, use rice rava(coarse rice flour) or use a rice lentil idli batter.

ingredients for making topping for idli sambar casserole dish

How to make Idli Sambar Casserole:

curry leaves and chili in a sauteeing pan

Make ย the tempering for sambar. Heat the oil in a small skillet.

Once hot add the mustard seeds and then wait for them to start popping or change color. Then add curry leaves and red chilies and mix well. Then switch off the heat. The tempering is optional, but adds a lot of traditonal sambar ย flavor

chili and curry leaves in a glass casserole dish

Add this tempering to 9 x 9โ€œ or a similar size baking dish. Then add the rest of the ingredients and mix well and even them out.

lentils being added to tempering in casserole dish

Cover the baking dish with the parchment and put it in a preheated oven at 400ยฐF / 205c for 35 to 45 minutes. The exact time depends on the lentils used.

onions, lentils, tomatoes, and tempering in a glass casserole dish

veggies being added to tempering in a glass casserole dish

veggies in a glass casserole dish

spices frying in a tempering

In the meanwhile, make the Rava idli batter:

Heat the same skillet over medium heat , add the oil. Once the oil is hot add the mustard seed, & ย cumin seeds, and made for them to change colors significantly.

spices, chili and ginger in a sauteeing pan

Add the curry leaves, and cashews and mix well then add the Ginger and green chili and continue to cook for a minute.

spices, semolina, ginger and chili in a sauteeing pan

Then add in the semolina and continue to roast For 3 to 4 minutes. Then take off the heat.

tempering and semolina in a frying pan

dry mix for idli topping in a white bowl

Transfer this mixture to a large bowl. Add cilantro, baking soda, salt and mix in.

yogurt being added to topping for idli casserole

Then add in the yogurt, lemon juice and water and mix in. Letโ€™s sit for 10 minutes and if it has thickened too much then you can add another few tablespoons of water until mixture is a spreadable consistency.

idli batter in a white bowl

Take the baking ย dish out of the oven.

sambar baked in a glass casserole dish

Then spread this semolina mixture over just you and even it out.

assembled Idli Sambhar casserole before baking

Then cover with parchment(important) ย and put it back into the oven for 11 minutes. Check at the 10-minute mark if the semolina isย  cooked through then take the dish out of the oven. Drizzle some lemon juice on top and serve.

freshly baked idli sambhar casserole on a kitchen counter with a plate with once square cut

Alternatively, make the sambar in the saucepan:

Prepare the tempering in the saucepan over medium heat, then add onion and cook until translucent. Then add the rest of the ingredients, partially cover, and cook for 20- 45 mins(depending on the lentils used).

Then transfer to the baking dish. Top with the idli batter, cover with parchment, and bake for 11 mins.

a serving of idli sambar casserole in a deep white plate

Storage

Slice and cover the baking dish to store refrigerated for up 3 days

a square of idli sambar casserole on a white plate

About Richa

Hi, I'm Richa! I create flavorful plant based recipes that are inspired by my Indian upbringing, including many gluten-free, soy-free, and oil-free options.

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14 Comments

  1. Jennifer says:

    Is there a substitute for the semolina? I’m having trouble finding it locally, but I’ll order online if there aren’t any decent substitutes. Thank you.

    1. Richa says:

      You can use white rice flour. Or you can use idli batter from An Indian store or make the lentil rice batter

  2. Debbie says:

    This recipe really intrigues me and Iโ€™ve been really wanting to try it. Just a simple question, please explain why do you put the parchment paper on the baking dish as instructed in step 3 when you are going to bake the sambar? I understand putting it on top of the batter in step 6, but just wasnโ€™t sure about it in step 3. Thank you so much for your website and your recipes!

    1. Richa says:

      To reduce evaporation and also help reduce baking time by capturing the heat in the pan

  3. RD says:

    5 stars
    Tried this last night and it turned out quite delicious. I didn’t measure the water properly so I did have to wait a bit longer for the sambar to get thicker and for the lentils to cook. For the idli, I used the MTR instant idli mix with some of the toppings and it turned out great! It’s really such a creative recipe!

    1. Richa says:

      Awesome!

  4. Sital says:

    5 stars
    Sounds brilliant…i eat idli dipped in sambhar a lot and this reminds me of that…I guess the sambhar can be made in advance in the instant pot as well…I have your instant pot recipe book which has a sambhar recipe….

    1. Vegan Richa Support says:

      that’s great to hear, Sital! thank you for getting my book! sambhar can be made in advance, yes.

  5. Anne says:

    5 stars
    Delicious!! Would make again!

    1. Vegan Richa Support says:

      Thank you, Anne!

  6. NancyAnn says:

    5 stars
    I just wanted to take a moment to thank you for this, and ALL of the delicious recipes you share. I’ve made more than I can count, and every single one has been amazing. Your directions are easy to follow and the end results are fabulous. Thank you!

    1. Richa says:

      Thank you Nancy!

  7. Daisy says:

    Can you make this with Dosa store bought batter?

    1. Richa says:

      Yes! Just added in notes