Chef Boyardee’s Spaghetti

Name: Chef Boyardee’s Spaghetti
Cuisine: European, Italian, Mediterranean
Ingredients: 2 lbs (1 kg) canned peeled tomatoes, or fresh if they’re in season; 6 tablespoons (90 ml) extra virgin olive oil; 1 cup diced onion; 1 1/2 teaspoons salt; 1/2 cup diced carrot; 1 lb lean ground beef; 1 teaspoon freshly ground pepper; 5 medium basil leaves, sliced into strips; 1/2 cup sliced mushrooms; 8 ounces dried spaghetti; 2 tablespoons (28 g) butter; 3 tablespoons grated parmesan cheese, plus more for garnish