Shawarma Pita Sandwiches

1/2 lb lamb meat, cut into strips
1/2 lb chicken breast, cut into strips
3 tsp Shawarma Spice Blend
1/2 tsp sea salt
3 cloves garlic, minced
1/2 onion, minced
1 bay leaf
1/2 cup lemon juice
1/2 cup red wine vinegar
6 large sections pita bread
2 tomatoes, chopped
6 slices pickles (optional)
3 serrano or jalapeno chilies, stems and seeds removed, chopped
Yogurt to taste

Place meat in a glass bowl. In another bowl, combine the spices, salt, garlic, onion, bay leaf, lemon juice, and vinegar, stir well, and pour it over the meat. Marinate in the refrigerator for at least 2 hours.
Drain meat from the marinade and pat dry. Grill meat over a hot charcoal or gas fire until done, about 10 minutes, turning often. Divide meat into pita bread sections, add tomatoes, pickles, if using, chilies, and a tablespoon or more of yoghurt.