Brown onions and burger in ... Simmer gently. Cook spaghetti, drain and rinse. Add ... refrigerate. Bake 25 minutes at 400 degrees. Garnish with parsley.
In large skillet, heat oil. ... onions, cook until vegetables are tender. Add tomato sauce, ... 15 minutes. Cook spaghetti according to package directions, drain. Serve sauce over hot spaghetti.