ground beef, with a little fat (about 500 grams) • small onion, finely grated • medium garlic clove, minced • tomato, juiced or very finely grated • fresh cilantro, finely chopped (or about 10 sprigs) • fresh parsley, finely chopped (or about 10 sprigs) • dried mint, crushed (or 5 fresh mint leaves, finely chopped) • small green chili pepper, very finely chopped • ground black pepper • meat spice blend (if available) • Salt, to taste