Lisa's Lasagne

In nonstick skillet, cook onions until beginning to soften but not brown. Add sausage and cook until no pink remains, stirring often and breaking up into small pieces. Drain off accumulated fats. In a medium bowl, beat egg. Add cottage cheese, parmesan, and garlic salt. Set aside. In a 9x13 pan or smaller casserole, put scant 1/4 cup pasta sauce in bottom of pan. Add lasagne noodles (uncooked) in a single layer to cover the bottom of the pan, breaking them to fit as needed. Dot additional sauce on top of noodles to barely cover them. Squeeze water out of thawed spinach with your hands. Take half of spinach and tear apart with fingers and arrange in layer over noodles and sauce. Put half of sausage and onion mixture over this. Spread half of egg and cheese mixture over this. Sprinkle mozzarella sparingly over this. Add another layer of noodles, and generously top with pasta sauce. Repeat with another layer of spinach, meat, cheese mixture, mozzarella, noodles, and sauce. Sprinkle top layer generously with mozarella. Bake in 350 oven for 55 minutes, uncovered. Once cheese begins to brown (around 40 minutes), cover with casserole lid or foil to prevent overbrowning and finish noodle softening. Dish is done when cheese is brown and bubbly at the edges and a kitchen knife inserted straight down into the layers encounters little resistance from the lasagne noodles (it's very obvious when it's undercooked).