Cheese Lasagna without butter

4 cups ricotta cheese (2-16 oz containers) 2 cups monterey jack cheese (finely shredded) 2 cups romano cheese (finely shredded) 2 cups mozzarella cheese[...]

6 lasagna sheets (12 lasgna noodles) 2 tablespoons olive oil 1 medium onion , finely chopped 2 garlic cloves , crushed salt & pepper 1 teaspoon ground sage[...]