Instructions:

Preheat the oven to 350 degrees F (175 degrees C) and lightly grease a 9×13-inch baking pan.

Bring a large pot of lightly salted water to a boil. Cook spaghetti until al dente, approximately 12 minutes. Stir occasionally.

In a skillet over medium-high heat, brown and crumble the ground beef for 5 to 7 minutes. Drain fat and mix in the spaghetti sauce.