Cheesy All-Vegetable Lasagna | Healthy & Flavorful Vegetarian Recipe

Ingredients

• 1 onion, diced small
• 1 (8-ounce) package baby bella mushrooms, diced small
• 1 small (12-ounce) eggplant, diced small
• 1 small zucchini or yellow squash, diced small
• 1 red bell pepper, diced small
• 3 cloves garlic, minced
• 1 teaspoon salt
• 1 teaspoon fresh thyme (or 1/2 teaspoon dried thyme)
• 1 teaspoon fresh oregano, minced (or 1/2 teaspoon dried oregano)
• Pinch red pepper flakes, optional
• 6-ounce package baby spinach
• 3 cups tomato sauce (or one 28-ounce can crushed tomatoes)
• 15 dry lasagna noodles (regular noodles, not no-boil)
• 2 1/2 cups ricotta cheese
• 3 cups shredded mozzarella cheese