Heat olive oil in a large skillet over medium heat. Add the diced chicken and cook until golden brown and cooked through, about 5-7 minutes.
Stir in the orzo and cook for 1-2 minutes.
Add 2 cups of water or chicken broth, oregano, salt, and pepper. Bring to a boil, then reduce heat to low, cover, and simmer for about 10 minutes, until orzo is tender.
Stir in tomatoes, cucumber, spinach, olives, and feta. Remove from heat.
Drizzle with lemon juice before serving and enjoy your Mediterranean feast!
Notes
Make sure not to overcook the chicken to keep it juicy. Adjust the seasonings to your liking.