For Seasoning (Optional)
1. ½ small red or white onion
2. Ketchup
3. 1 tbsp Worcestershire sauce
4. 1 tbsp mustard
5. 1 tbsp white pepper
6. 1 garlic clove
7. Handful fresh herbs, chopped roughly
8. Salt and pepper to taste
For Toppings
1. 2 thinly sliced tomatoes
2. 6 slices of cheese
3. Lettuce leaves
4. Ketchup
5. Mayonnaise