Turkey & mushroom burgers

Dinner idea for this week

 

3 slice(s) Slimex bread
400g white mushrooms, wiped clean
1 medium onion, finely chopped
2 clove(s) garlic, minced
100g lean ground turkey breast
2 egg whites, lightly beaten
2 tablespoon(s) chopped fresh dill
1 coarse-grained mustard
pinch of salt
pinch of freshly ground pepper
Lettuce leaves & tomato slices, for garnish