Baked Spaghetti

Preheat the oven to 350 degrees F (175 degrees C).

Mix eggs and bread crumbs together in a bowl. Add ground beef. Add 1/2 of the oregano, garlic powder, black pepper, and basil. Mix well. Shape into meatballs that are about 1 inch in diameter.

Heat oil in a skillet over medium-low heat. Cook meatballs in the pan with onion until golden brown, 7 to 10 minutes. Add tomato sauce, tomato paste, mushrooms, and remaining oregano, garlic powder, black pepper, and basil. Simmer for about 10 minutes.

Meanwhile, bring a large pot of lightly salted water to a boil. Cook spaghetti in the boiling water, stirring occasionally, until tender yet firm to the bite, about 12 minutes. Drain.

Place spaghetti into a 9×13-inch baking pan and pour sauce evenly over the top. Top with Parmesan cheese and cover with aluminum foil.

Bake in the preheated oven until bubbly and and cheese is melted, about 30 minutes.