Sautee vegetables in butter, add meat and cook until browned.
Add salt, pepper, tomato paste, salsa, and broth.
Cover and simmer for 30 minutes.
Meanwhile cook macaroni according to package directions (al dente) making sure to salt the water.
Spread half of the cooked macaroni in a large 4" deep rectangular pan.
Pour all of the meat over the macaroni.
Spread the rest of the macaroni on top.
Beat the eggs and pour them over the macaroni.
Sprinkle with cheese.
Bake uncovered at 400 degrees for 1 hour.