INGREDIENTS
1/2 lb
Ground beef
6 oz
Ground lamb
1 cup
Baby spinach
1 tbsp
Cilantro, fresh
1/2
English cucumber, dry squeezed
1
Garlic clove
1 tbsp
Mint, fresh
4
thin slices Red onion
1 1/2 tsp
Serrano chile
1/8 tsp
Black pepper, freshly ground
3/8 tsp
Kosher salt
1 tsp
Olive oil
4
hamburger buns, toasted
1/3 cup
Greek yogurt, plain fat-free