Fajita-Stuffed Portobello Mushrooms

Name: Fajita-Stuffed Portobello Mushrooms
Cook time: 55 min
Total time: 55 min
Cuisine: Mexican
Ingredients: ¼ cup extra-virgin olive oil; 2 teaspoons chili powder; 1½ teaspoons ground cumin; 1½ teaspoons smoked paprika; ¾ teaspoon granulated garlic; ¾ teaspoon onion powder; 8 medium (4-ounce) portobello mushroom caps, stems and gills removed; 1 large red bell pepper, sliced ¼-inch thick (about 1½ cups); 1 small red onion, sliced ¼-inch thick (about 1 cup); ¼ teaspoon salt; 1 (15-ounce) can no-salt-added black beans, rinsed; 1 cup shredded Monterey Jack cheese, divided; ½ cup whole-milk plain strained (Greek-style) yogurt or sour cream; 2 tablespoons chopped fresh cilantro; Lime wedges for serving (optional)