Preheat oven to 400°F and lightly grease a small baking dish. Set aside.
Make 5-6 slits in each chicken breast,
taking care not to cut through completely. Stop the cut about 1/2″ from
the bottom. Place chicken breasts in prepared baking dish.
In a small bowl, mix together the
olive oil, lemon juice, garlic, and oregano. Brush over chicken breasts,
making sure the mixture gets down into the slits. Season generously
with salt and pepper.
Stuff slits in chicken breast with
zucchini, tomatoes, red onion, and lemons. (You don’t need to put all 4
in each slit, 3 fruits/veggies per slit is fine.) Arrange any leftover
fruits and veggies around the chicken breasts in the baking dish.
Sprinkle mozzarella and feta over the top and bake until chicken is cooked through, about 25 minutes. Enjoy!