Ground beef burgers

Ingredients: (for 4 to 6 people.
Ingredients:
1/2 kilo of ground beef
1/2 white onion chopped
4 tablespoons tomato sauce
1 tablespoon mustard
1 tablespoon white pepper
1 clove garlic
pinch of cumin
Salt and pepper to taste
parsley, oregano or cilantro
1 egg
Preparation:
1. MIX onion, minced garlic, meat, mustard and herbs.
2. Beat the egg with salt and pepper. Add to meat.
3. Form the hamburgers the size you want.
4. Heat a skillet over medium heat and fry the meat on both sides. You can also cook them in the oven or on the grill.