vegetarian lasagna

Ingredients

• 1 pound lasagna noodles
• 2 cups ricotta cheese
• 1 cup grated Parmesan cheese
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 3 cloves garlic, minced
• 1 (15 ounce) can tomato sauce
• 1 (8 ounce) package fresh spinach, chopped
• 1 (10.75 ounce) can condensed cream of mushroom soup
• 2 cups shredded mozzarella cheese
• 1 large zucchini, sliced
• 1 eggplant, sliced
• 1 bell pepper, sliced
• 1 onion, sliced
• 1 cup mushrooms, sliced