cooking / mains

Spicy Mushroom Lasagna

serves 8-10 · 75-90 minutes · 30 minutes hands on · medium

Why This Works

A pound and a half of mixed mushrooms, cooked down until their liquid evaporates, gives the tomato sauce a meaty depth, and chili flakes keep the richness from going flat. It's built to be made ahead — it reheats and freezes beautifully.

Ingredients

Mushroom tomato sauce

  • 2-3 tbsp olive oil
  • 1 large onion or shallot, diced
  • 4-6 cloves garlic, minced
  • 1 lb cremini mushrooms, sliced
  • 8 oz mixed mushrooms (shiitake, oyster, etc.)
  • 1-2 tsp chili flakes, to taste
  • 28 oz can crushed tomatoes
  • Salt and black pepper
  • Fresh thyme or oregano (optional)

Layers

  • 1 box lasagna noodles (no-boil or regular)
  • 15 oz ricotta or cottage cheese
  • 2 cups shredded mozzarella
  • 1 cup grated Parmesan

Method

  1. Make the sauce. Heat the olive oil in a large skillet, sauté the onion until soft, then add the garlic. Add all the mushrooms and cook until their liquid evaporates. Add the chili flakes and crushed tomatoes, simmer 15-20 minutes, and season with salt, pepper, and herbs.
  2. Assemble. Spread a thin layer of sauce in a 9x13 baking dish, then layer noodles, ricotta, sauce, and mozzarella. Repeat 3-4 times, finishing with the remaining sauce and cheeses.
  3. Bake. Cover with foil and bake at 375°F for 45-60 minutes, uncovering the last 10-15 minutes to brown the top. Rest 10-15 minutes before cutting.

Notes

  • Spice level: 1 tsp chili flakes is mild, 2 tsp medium-spicy.
  • Make-ahead: cool completely before refrigerating. Reheat covered at 350°F for 30-40 minutes.
  • Keeps 4-5 days refrigerated or up to 3 months frozen.
  • Variations: plant-based cheeses for a vegan version; add spinach or kale between the layers; vary the mushroom mix.