Brush each bell pepper half, inside and out, with olive oil and roast at 400F for 20-25 mins.
Brown ground meat with onion. Cook quinoa.
Combine cooked meat and quinoa with taco seasoning, black beans, corn, and Rotel tomatoes.
Remove bell peppers from oven and carefully stuff them with meat mixture and return to oven to melt.
Garnish with cilantro and greek yogurt.
Enjoy.