Hearty Kasha with Mushrooms (Vegetarian Varnishkes)

Whole Grains, Rice, and Pasta

October 30, 2026

Classic Kasha with Mushrooms and Onions – vegetarian recipe

This classic kasha with mushrooms and onions is comfort food at its most honest: nutty buckwheat groats coated in beaten egg before simmering, so every grain stays separate and fluffy. It's a 40-minute side that tastes like it took all afternoon.

Craving a side dish that’s both deeply comforting and full of character? Let me introduce you to the magic of kasha! The distinct, nutty flavor of toasted buckwheat groats is truly special. In this classic recipe, we pair it with savory sautéed mushrooms and onions to create a wonderfully rustic and satisfying dish. It’s the perfect hearty companion for a cozy meal and a fantastic way to explore the wholesome world of buckwheat.

Ingredients

• 1 tablespoon butter
• 3 cups (720 ml) / 8 ounces quartered mushrooms
• 1 medium onion, minced
• 1 1/4 cups (960 ml) medium-granulation kasha (buckwheat groats)
• 1 large egg, beaten
• 2 1/4 cups (960 ml) hot vegetable stock
• 1/4 teaspoon (20 ml / 0.7 fl oz) salt

Instructions

1. Sauté the Aromatics: Melt the butter in a large skillet over medium heat. Add the mushrooms and onion, and cook, stirring occasionally, until the mushrooms are deeply browned and tender, about 10 minutes.
2. Toast the Kasha: While the vegetables cook, combine the dry kasha and beaten egg in a separate medium saucepan. Stir briskly over low heat until every grain is coated. Turn the heat to medium and continue stirring constantly until the kasha is toasted, dry, and the grains are separate, about 3-4 minutes.
3. Combine and Simmer: Add the cooked mushroom and onion mixture to the toasted kasha and toss to combine. Pour in the hot vegetable stock and salt. Stir once, bring to a simmer, then cover the pan, and reduce heat to low. Cook for 10-12 minutes, or until all the liquid is absorbed.
4. Rest and Fluff: Remove the pan from the heat and let it stand, covered, for 5 minutes. Uncover and fluff gently with a fork before serving.

Nutritional Information

• Serving Size: 1 of 4
• Calories: 295 kcal
• Protein: 13g
• Fiber: 8g
• Carbohydrates: 52g

Pro Tips

• For a vegan version, use olive oil instead of butter and simply omit the egg. The toasting step is still crucial for flavor and texture.
• Elevate the flavor by using cremini or a mix of wild mushrooms instead of standard white button mushrooms.
• Don’t skip toasting the kasha with the egg. This traditional step coats the grains, preventing them from becoming mushy and ensuring a light, fluffy result.
• Finish the dish with a sprinkle of fresh parsley or dill for a burst of freshness that complements the earthy flavors.

FAQ

Q: How can I make this kasha recipe vegan
A: To make this kasha dish fully vegan, simply substitute the butter with olive oil or another plant-based butter. You can omit the egg entirely; the kasha will still be delicious, though slightly less fluffy. The key is to still toast the dry groats in the pan for a few minutes to develop their nutty flavor before adding the liquid.

Q: Is this vegetarian kasha a good source of protein
A: Yes, this is an excellent high-protein vegetarian side dish. A single serving contains approximately 13 grams (0.46 oz / 13 g) of protein, thanks to the buckwheat groats, which are a complete protein source containing all nine essential amino acids.

Q: Can I turn this kasha side dish into a full vegetarian meal
A: Absolutely. To make this a more substantial main course, you can add a can of chickpeas or some pan-fried tofu for extra protein and texture. Serving it with a side of steamed green beans or a fresh green salad would also create a well-rounded and satisfying vegetarian meal.

Q: How do I store and reheat leftover kasha
A: Store any leftover kasha in an airtight container in the refrigerator for up to 4 days. To reheat, you can microwave it or warm it in a skillet over medium-low heat. If it seems a bit dry, add a splash of water or vegetable broth to help it steam and regain its fluffy texture.

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Classic Kasha with Mushrooms and Onions – vegetarian recipe
Stav Kogan

Classic Kasha with Mushrooms and Onions

A rustic and satisfying side dish featuring the distinct, nutty flavor of toasted buckwheat groats paired with savory sautéed mushrooms and onions. The perfect hearty companion for a cozy meal.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 4 serving
Calories: 295

Ingredients
  

  • 1 tablespoon (15 ml / 0.5 fl oz) butter
  • 3 cups (720 ml) (8 ounces) quartered mushrooms
  • 1 medium onion, minced
  • 1 1/4 cups (960 ml) medium-granulation kasha (buckwheat groats)
  • 1 large egg, beaten
  • 2 1/4 cups (960 ml) hot vegetable stock
  • 1/4 teaspoon (20 ml / 0.7 fl oz) salt
  • For a vegan version, use olive oil instead of butter and simply omit the egg. The toasting step is still crucial for flavor and texture.
  • Elevate the flavor by using cremini or a mix of wild mushrooms instead of standard white button mushrooms.

Method
 

  1. Sauté the Aromatics: Melt the butter in a large skillet over medium heat.
  2. Add the mushrooms and onion, and cook, stirring occasionally, until the mushrooms are deeply browned and tender, about 10 minutes.
  3. Toast the Kasha: While the vegetables cook, combine the dry kasha and beaten egg in a separate medium saucepan.
  4. Stir briskly over low heat until every grain is coated.
  5. Turn the heat to medium and continue stirring constantly until the kasha is toasted, dry, and the grains are separate, about 3-4 minutes.
  6. Combine and Simmer: Add the cooked mushroom and onion mixture to the toasted kasha and toss to combine.
  7. Pour in the hot vegetable stock and salt.
  8. Stir once, bring to a simmer, then cover the pan, and reduce heat to low.
  9. Cook for 10-12 minutes, or until all the liquid is absorbed.
  10. Rest and Fluff: Remove the pan from the heat and let it stand, covered, for 5 minutes. Uncover and fluff gently with a fork before serving.
  11. Don't skip toasting the kasha with the egg. This traditional step coats the grains, preventing them from becoming mushy and ensuring a light, fluffy result.
  12. Finish the dish with a sprinkle of fresh parsley or dill for a burst of freshness that complements the earthy flavors.

Nutrition

Calories: 295kcalCarbohydrates: 52gProtein: 13gFat: 4.1g

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