In a medium saucepan, warm the olive oil over medium heat. Stir in the celery and garlic, and sauté until lightly browned, about 3 minutes. Add the quinoa and vegetable broth. Season with cumin, chili powder, and salt and pepper to taste, and bring the mixture to a boil. Cover, reduce heat to low, and simmer 20 minutes.
Add the vegetables and black beans into the saucepan and simmer for 5 minutes. Top with cheese, if using, season with salt and pepper to taste, and serve.
Nutrition information per serving:
Calories270Fat4 gSodium370 mgSaturated fat1 g
Carbohydrates48 gCalcium100 mg
Protein12 gCholesterol0 mgDietary fiber13 g