Bring water and salt to boil. Add orzo, cook 8 minutes.
While orzo is cooking, cut pork into 1 inch cubes. Toss with lemon pepper. Heat olive oil in skillet, saute pork until done, 8-10 minutes. Turn down to low; add olives, spinach and tomatoes. Cook 2 minutes until spinach is wilted.
Drain orzo, toss with pork mixture. Top with feta.