Preheat your oven to 375°F (190°C).; Cut the tops off the bell peppers and remove the seeds and membranes.; Rub the outsides lightly with olive oil and set them upright in a baking dish. If they won’t stand up, slice a thin piece off the bottom to level them (just don’t cut through!).
In a large bowl, combine the cooked wild rice, chickpeas, feta, herbs, garlic, lemon juice, olive oil, and salt + pepper.; Stir gently until everything is well mixed. Add pine nuts if using.
Spoon the filling into each bell pepper, pressing down slightly so they’re packed.; Pour about ½ cup of water or veggie broth into the bottom of the baking dish to keep them moist.; Cover loosely with foil and bake for 25 minutes. Remove foil and bake another 10–15 minutes until the peppers are tender and lightly golden on top.
While the peppers bake, whisk together all drizzle ingredients in a small bowl. Thin with a little water if desired until pourable.
Drizzle the yogurt sauce over warm peppers or serve it on the side.; Sprinkle with extra herbs or a pinch of chili flakes for color.