Cook orzo according to package directions, drain and cool

Cut tops off tomatoes and scoop out flesh, reserving pulp

Chop tomato pulp and mix with orzo, feta, olives, herbs, and garlic

Season mixture with salt, pepper, and 2 tbsp olive oil

Stuff tomatoes with orzo mixture and brush with remaining oil

Preheat grill to medium heat

Grill stuffed tomatoes for 12-15 minutes until tender

Let cool for 5 minutes before serving