To make the marinade
: In a large glass bowl, whisk together the olive oil, lemon juice, orange juice
, chili flakes, chili powder
, garlic, salt, and black pepper. Add in the pork
and toss to coat. Cover the bowl and refrigerate for at least 30 minutes (although I prefer to marinate for 3 hours or overnight).
Soak the wooden skewers in a shallow pan of water for at least 1 hour.
Remove the pork cubes from the marinade. Thread 3 or 4 pieces of marinated pork on the skewers, alternating the pork with small wedges of lemons and oranges
. Place the skewers on an area of the grill
with no direct flame. Continue to brush marinade during grilling, until the meat is browned, about 8 to 10 minutes, turning occasionally or to desired doneness. Transfer the pork from the skewers and place in pita
pockets. Top the pork with shredded lettuce and avocado