Chipotle Brown Rice Bake

Name: Chipotle Brown Rice Bake
Prep time: 10 min
Cook time: 1 h 10 min
Total time: 1 h 20 min
Cuisine: American, Mexican, Latin American
Ingredients: 2 cups (390 g) short grain brown rice; 15-ounce (425 g) can black beans, drained and rinsed; 1 cup (135 g) diced red onion; 1 cup (134 g) frozen corn kernels; 1 cup (88 g) frozen chopped kale or spinach pieces; 1/2 cup (60 g) sliced black olives; 1 chipotle pepper in adobo sauce, diced with seeds removed; 1 tablespoon (14 g) adobo sauce from can, or to taste/spice threshold; 1 teaspoon ground cumin; 1/2-3/4 teaspoon sea salt, to taste; 1/2 teaspoon dried oregano; 3 cups (710 ml) low or no-sodium vegetable broth*, heated to boiling hot; 15-ounce (425 g) can tomato sauce; 1/2 large avocado, diced (optional); 2 tablespoons (3 g) diced green onion or cilantro (optional); Lime wedges, optional*