This Homemade Slow Cooker Meat Sauce for Spaghetti is a flavorful, tomato-based sauce full of ground beef and sausage, zesty onion, flavorful garlic, and a tasty blend of Italian spices for a spaghetti sauce that will become your family’s new favorite.
– 1 lb ground beef – 1 lb Italian Sausage – 1½ cups yellow onion (diced) – 3 tbsp butter – 3 cloves garlic (minced) – 1 (28 oz.) can diced tomatoes (do not drain) – 2 (15 oz.) cans tomato sauce (do not drain) – 1 (6 oz.) can tomato paste – 1½ tsp black pepper – 1½ tbsp brown sugar (optional) – 1 tbsp dried oregano – 1½ tbsp dried basil – 1 tsp dried parsley – ¼ tsp crushed red pepper – 1½ cups beef broth