Ingredients 

1/2 pound ground beef
1/2 pound ground Italian sausage , could also use ground beef
1 teaspoon Italian seasoning
1/2 cup chopped onion
24 ounces spaghetti sauce , or marinara
1 cup water , divided
15 ounces ricotta cheese
2 cups shredded mozzarella cheese , divided
1/2 cup grated parmesan cheese
1 large egg
9-12 lasagna noodles , uncooked

Instructions

Spray the slow cooker with non-stick cooking spray. Brown the hamburger and Italian sausage in a pan over medium heat. Drain grease and then add Italian seasoning and onions. Cook until onions are soft and then stir in the sauce with 1/2 cup water. Let simmer for 5 minutes. 

While the sauce is simmering, mix together the ricotta cheese, 1 cup mozzarella cheese, parmesan cheese and egg. 

Spread about a cup of the sauce and 1/2 cup water onto the bottom of the crock pot. Then top with 3 noodles (you may need to break some noodles to fit). Then spread about 1/3 of the cheese mixture on top of the noodles.

Repeat with 2 more layers, or until all the ingredients are used. Add 1/2 cup water around the sides. If your noodles are thick, add an extra 2 Tablespoons. Sprinkle remaining cup of mozzarella cheese on top.

Cook on low for 4-5 hours, or until noodles are tender. Top with fresh basil, if desired.