In a large bowl, combine the cooked rice, sliced green olives, chopped basil, lemon zest.
Next, add crumbled feta cheese and mix until everything is evenly combined.
Cut the bell peppers in half lengthwise and remove the seeds and core.
Drizzle the inside of each pepper with olive oil and season with oregano, red pepper flakes, and salt.
Add the cherry tomatoes and minced garlic to each pepper half.
Fill each pepper with the rice and feta mixture. Bake at 350°F for 20 to 30 minutes, or until the peppers are tender and the feta begins to turn lightly golden.
Notes
Use cooked rice that has cooled slightly before mixing the filling. This will ensure the rice is fluffy and has not clumped together.
Choose peppers that are similar in size so they cook evenly. For that bit of char on the outside, you can brush some olive oil on them.
Don't skip the lemon zest—it adds a lot of freshness to the filling. You can also use lemon infused olive oil to grease the peppers if you want some more lemony flavor.
If your peppers are particularly large, they may need a few extra minutes in the oven. For softer peppers, cover the baking dish with foil for the first 15 minutes of baking.