Tex-Mex Spaghetti Casserole

Directions

1. 1
   Cook spaghetti according to directions; drain and place in the bottom of a 9 x 13-inch baking dish.
2. 2
   Set aside.
3. 3
   Brown beef and onions; drain excess fat.
4. 4
   Add taco seasoning and tomato sauce to beef; mix well.
5. 5
   Pour beef mixture over noodles.
6. 6
   Sprinkle cheese on top.
7. 7
   Bake, uncovered, in a 350° oven until cheese is melted.