You can use fresh lean beef, beef heart, liver, stewing meats, boneless steak or beef roast, boneless and skinless chicken breast, chicken thigh, fish fillets, leg of lamb, boneless stew lamb, etc., with selected vegetables like beets, broccoli, cucumber, carrots, pumpkin, squash, parsnips, yams, zucchini, sweet potatoes, etc., as the best ingredients.