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These slow cooker Tex-Mex black beans are an easy, flavor-packed side dish you can set and forget. With zesty tomatoes, mild green chiles, and warm spices, the beans develop deep flavor as they simmer gently in your slow cooker.
They’re perfect served alongside tacos, enchiladas, or grilled meats—or spooned over rice for a simple vegetarian meal. You can adjust the heat to your liking and even stir in some bell pepper or jalapeño for extra flavor and color.
What You’ll Like About This Dish
Hands-off cooking. The slow cooker does all the work—just combine, set, and let it simmer.
Tex-Mex flavor. Fire-roasted tomatoes, chiles, cumin, and chili powder give these beans a bold, savory kick.
Versatile and adaptable. Serve as a side, main, taco filling, or base for burrito bowls.
Ingredient Notes
- Black beans: Use canned black beans, drained for best texture—no need to rinse unless preferred.
- Fire-roasted or zesty tomatoes: Adds smokiness and depth; chili-style tomatoes give extra Tex-Mex flavor.
- Mild green chiles: Adds flavor without overwhelming heat.
- Onion and garlic: Key aromatics that build the base of flavor.
- Cumin and chili powder: Classic Tex-Mex spices that bring warmth and color.
- Oregano and crushed red pepper: For herbal and spicy notes—adjust red pepper to taste.
- Salt and black pepper: Season to taste after cooking if your tomatoes or beans are already salted.
- Cilantro (optional): Adds brightness and color right before serving.
Steps to Make Slow Cooker Tex-Mex Black Beans
- Add the drained black beans to the slow cooker.
- Stir in the tomatoes, green chiles, onion, garlic, and seasonings.
- Cover and cook on low for 4 to 5 hours.
- Stir in chopped cilantro just before serving.
Tips for Slow Cooker Black Beans
- Use fire-roasted or chili-ready tomatoes for extra depth and Tex-Mex flavor.
- Add diced bell pepper or jalapeño for more color and heat.
- If the mixture seems too thick, stir in a few tablespoons of water or broth.
- Make it ahead and reheat for easy meal prep or weekday dinners.
Recipe Variations
- Extra spicy version. Stir in chopped jalapeño or use hot green chiles.
- Smoky flavor. Add a dash of smoked paprika or chipotle chili powder.
- Vegetable add-in. Stir in corn, zucchini, or chopped bell peppers in the last hour of cooking.
- Creamy twist. Mash some of the beans or stir in a spoonful of sour cream at the end.
- From scratch. Use soaked dried black beans and increase cook time to 7 to 8 hours on low, adding extra liquid as needed.
Serving Suggestions
- Serve as a side for tacos, burritos, enchiladas, or grilled meats.
- Spoon over steamed rice or quinoa for a hearty vegetarian meal.
- Use as a filling for tacos, burritos, or quesadillas.
- Top with sour cream, cheese, avocado, or fresh salsa for added flavor.
How to Store and Reheat
Refrigerate: Store leftovers in an airtight container for up to 4 days. Let cool completely before sealing.
Freeze: Freeze in portions with a little cooking liquid for up to 2 months. Thaw in the refrigerator overnight before reheating.
To reheat: Warm on the stovetop over low heat, stirring occasionally. Add a splash of water or broth if needed to loosen the mixture.
Slow Cooker Tex-Mex Black Beans
Ingredients
- 2 (15-ounce) cans black beans, drained and rinsed
- 1 (14.5-ounce) can diced fire-roasted tomatoes, with juice
- 1 (4-ounce) can chopped mild green chiles
- 1 cup chopped onion
- 2 cloves garlic, minced
- 1 tsp ground cumin
- 1 tsp chili powder
- ½ tsp dried oregano
- ¼ tsp crushed red pepper, or to taste
- ½ tsp kosher salt, or to taste
- ¼ tsp freshly ground black pepper
- 1 tbsp chopped cilantro (optional)
Recommended Equipment
Instructions
- Combine the drained black beans, fire-roasted tomatoes, mild green chiles, onion, minced garlic, cumin, chili powder, oregano, crushed red pepper, salt, and pepper in the slow cooker insert.2 (15-ounce) cans black beans | 1 (14.5-ounce) can diced fire-roasted tomatoes | 1 (4-ounce) can chopped mild green chiles | 1 cup chopped onion | 2 cloves garlic | 1 tsp ground cumin | 1 tsp chili powder | 1/2 tsp dried oregano | 1/4 tsp crushed red pepper | 1/2 tsp kosher salt | 1/4 tsp freshly ground black pepper
- Cover and cook on LOW for 4 to 5 hours.
- Stir in the cilantro just before serving, if desired.1 tbsp chopped cilantro (optional)
Nutrition
Disclaimer:
Our nutritional information is based on a third-party application that analyzes the ingredients list to determine the values. The information is meant to be helpful, but should be considered an estimate. Values may differ depending on measurements, brands, serving variations, and database availability.
