Preheat the Oven: Heat your oven to 200ºC (392ºF).
Prepare the Peppers: Halve the peppers and remove seeds. Mix with olive oil, minced garlic, and a dash of salt and pepper. Sprinkle with oregano.
Roast: Place peppers on a baking tray, cut side up, and roast for 25-30 minutes until they begin to char around the edges.
Marinate Tomatoes: Combine cherry tomatoes with 2 tablespoons of olive oil and half of the chopped basil. Season with salt and pepper, and let marinate.
Prepare Rice Mixture: Toss the warmed rice with olives, lemon juice and zest, half of the feta, and the remaining basil.
Stuff and Serve: Fill the roasted pepper halves with the rice mixture. Top with marinated tomatoes and the rest of the crumbled feta.