Mediterran Lamb Burgers

500 g ground lamb
250 g ground beef
1 tbsp SIDS HOT WORCESTER SAUCE
3 tbsp chopped fresh mint
1 tsp minced ginger root
1 tsp minced garlic
2 tsp SIDS SALT & PEPPER
490 g Greek yoghurt
½ lemon, zested
1 clove garlic, minced
½ tsp salt
3 shallots, chopped
4 slices green tomato
4 ciabatta sandwich rolls, sliced horizontally
250 g package feta cheese, sliced
8 leaves baby rocket or lettuce leaves

Preheat an outdoor grill for medium-high heat, and lightly oil the grate.
Mix the ground lamb, ground beef, SIDS HOT WORCESTER SAUCE, mint, ginger, garlic, 1 tsp SIDS SALT & PEPPER in a large bowl until just combined. Divide evenly into four portions and shape in to large patties. Set aside. Mix Greek yoghurt, lemon zest, garlic, and salt in a bowl then cover and refrigerate.
Cook the lamb & beef patties on the grill until the burgers are cooked to your desired degree of doneness, 3-4 minutes per side for well done. An instant-read thermometer inserted into the centre should read 70°C. Place the slices of onion and green tomato on the grill. Cook until lightly charred, about 1 minute on each side.
Spread yoghurt sauce over the sliced ciabatta rolls. Assemble each burger by placing the patty on the the roll, and dividing the feta cheese slices over the patties. Top with a slice of grilled tomato, grilled onion, and 2 leaves of rocket, followed by the top half of the roll.