Sauté: Bring a medium saucepan to medium-high heat. Add 1 tablespoon butter, let melt and swirl to coat the pan. Add ½ cup sweet yellow onion, 1 tablespoon garlic and 1 tablespoon jalapeño. Move around pan until garlic is fragrant and onion has softened, approx. 2-4 minutes.
Simmer: Add 15 ounces canned black beans, 2 ½ teaspoons ground cumin, 1 ½ teaspoons dried oregano leaves, 1 ¼ teaspoons kosher salt, 1 teaspoon soy sauce, ½ teaspoon lime juice, and ⅛ teaspoon ground black pepper. Stir to combine. Cover and let simmer 10 minutes.
Rice: Add 3 cups cooked long grain white rice to the seasoned black beans. Stir to combine. Taste and add additional salt, pepper or other seasoning, as desired.
Serve: Divide black beans and rice between plates. Top with cheese, avocado, tomato and sour cream.
Notes
Storage: store leftovers in an airtight container for up to 3 days.
Dairy-Free: use dairy-free cheese and sour cream to make this dairy-free.
Gluten-Free: use Tamari instead of soy sauce to make this gluten-free.