Grilled Chicken Souvlaki is always a favorite grilled chicken at my house. The marinade makes the most tender, moist and flavorful chicken. This chicken is gluten-free and easy to prepare.
Place chicken breasts between two sheets of plastic wrap and pound to an even thickness. Trim off fat.
Make the marinade by whisking together lemon juice through red pepper flakes. Place chicken in a plastic bag and pour over marinade. Massage so all chicken is covered in marinade. Place in refrigerator for a few hours or overnight.
Mix together all tzatziki sauce ingredients and set aside.
Grill chicken about 6-8 minutes per side or until a meat thermometer reads 160º. Remove from grill and place under foil to rest.