Veal Burger with homemade secret sauce

Burger Ingredients:
1lb Veal
Onion Sliced and grilled
Tomato
Red Leaf lettuce

Secret Sauce:
1c Greek Yogurt
1/3c Ketchup
2 Pickles (diced)
2 tsp Paprika
2 tsp Dill
2 tsp Hot Sauce
Splash of Apple Cider Vinegar