Ingredients 2 (8-ounce) boxes manicotti shells 1.5 pounds ground beef 1 pound hot Italian sausage 1 medium onion, finely diced 2 cups Colby-Jack cheese, shredded 6 ounces cream cheese, softened 1 jalapeño pepper, finely diced (optional) 2 teaspoons Slap Ya Mama seasoning (or other Cajun s…