"One pot spaghetti and meat sauce in crockpot using 2 tablespoons olive oil, 1 pound ground beef, 3/4 cup chopped onions, 1 whole clove garlic minced, 1 (1-pound, 12-ounce) can whole tomatoes, 1 (6-ounce) can tomato paste, 2 bay leaves, 1 teaspoon dried basil, 1/2 teaspoon salt, 1/4 teaspoon chili powder, 2 tablespoons chopped parsley, and 2 tablespoons melted butter. Include instructions for slow cooking and combining with spaghetti."