Most people like meat in their lasagna, but you will not miss it with this healthy recipe. Using cottage cheese instead of ricotta will reduce calories and fat, while the fresh spinach and mushrooms add texture, flavor, and nutrients.
Cook lasagna noodles according to the directions on the package. Drain and rinse with cold water.
While noodles are cooking, heat olive oil in a heavy-bottomed skillet and sauté the onions and garlic until translucent. Next add mushrooms and sauté for 2 minutes. Then remove from heat and stir peppers in with the rest of the vegetables.
In a bowl combine drained cottage cheese, 1 cup mozzarella, parmesan cheese, basil, oregano, and pepper. Once cheeses are mixed together well, add mushroom mixture and stir contents together.
In a 9×12-inch baking dish, spread ½ cup of the spaghetti sauce on the bottom. Use 3 lasagna noodles to cover the bottom. Add another ½ cup of spaghetti sauce followed by half of the cheese mixture and half the bag of spinach. Repeat the process until you come to the final layer of spaghetti noodles. Now add ½ cup of spaghetti sauce and spread it evenly over the noodles. Sprinkle the remaining cup of mozzarella cheese on top evenly.
Cover with foil and bake for 30 minutes in an oven preheated to 375°F. Remove the foil and allow lasagna to cook for 10 more minutes until the cheese on top is melted and bubbly.