You can use the meat sauce from my previous post for this, or just substitue cooked ground beef or sausage.
Step 1: Spread a layer of sauce on the bottom of your dish.
Step 2: Top with a layer of noodles. Yes, they are uncooked regular noodles. NOT the no boil kind.
Step 3: Add a layer of ricotta cheese.
Step 4: Top with your meat sauce or meat.
Step 5: Add a layer of mozzarella.
Step 6: Repeat your layers, then pour about 1/2 cup water in also. Top with cheese and cover with foil.
Step 7: Place on a foil lined pan. This will catch any boil over.
Step 8: Bake at 400 for about an hour and 30 mins. Stick a fork in it to test noodle doneness in the center.