
My go-to black bean casserole has saved my busy evenings for ages, blending filling protein with colorful veggies in one tasty meal that wins over even the fussiest eaters.
I whipped up this dish during an especially hectic period when I needed something healthy but couldn't spend hours in the kitchen. The sweet potato and black bean mix quickly turned into a household hit that's constantly requested.
Ingredients
- Olive oil: Forms the ideal starting point for cooking your veggies to bring out their best flavors
- Red onion: Offers a subtle tang that works wonderfully with the sweet potatoes
- Bell pepper: Adds vibrant hues and loads of vitamin C to your dish
- Sweet potatoes: Give a natural sugary kick and substantial texture that makes this truly satisfying
- Garlic cloves: Add wonderful aroma that spreads throughout every bite
- Jalapeño: Brings a mild kick that brightens up the whole casserole
- Smoked paprika: Adds smoky depth that makes this veggie dish taste hearty
- Ground cumin: Provides that warm, earthy touch needed for Mexican-inspired cooking
- Dried oregano: Contributes leafy flavor notes that work great with the beans
- Black beans: Pack in plenty of protein and fiber to make this truly filling
- Diced tomatoes: Supply moisture and tanginess that keeps everything succulent
- Sweetcorn: Bursts with natural sweetness against the savory components
- Low fat cheddar cheese: Delivers that yummy golden crust while staying lighter on calories
Step-by-Step Instructions
- Start the Base:
- Warm olive oil in a big oven-safe pan over medium heat. Toss in diced red onion and bell pepper, cooking for 2 minutes until onions start looking clear. This flavor foundation sets up the whole dish nicely.
- Add Sweet Potatoes:
- Throw in your sweet potato chunks and cook around 5 minutes, stirring now and then. You want them starting to soften but not fully cooked. They'll finish cooking later on, so this is just to get them started.
- Develop Flavor Profile:
- Put in garlic and jalapeño, cooking another minute until you can smell them working their magic. Then dump in your spices—smoked paprika, cumin, oregano, salt and pepper. Let them warm up for about 30 seconds, which makes them extra flavorful and adds more depth to your casserole.
- Preheat Oven:
- Turn your oven to 375°F (190°C) so it's hot when you need it for the cheese-melting part.
- Combine Main Ingredients:
- Add your diced tomatoes, black beans, and sweetcorn. Mix everything really well. Let it bubble gently for 10–15 minutes, giving it a stir once in a while. Make sure sweet potatoes get soft enough to stick a fork through. If things look dry, just splash in a bit of water to keep it all juicy.
- Create Cheesy Topping:
- Scatter shredded cheddar all over the top. Pop your pan into the hot oven and cook about 10 minutes. You'll know it's done when the cheese is all melty with some light golden spots showing.
- Final Touches:
- Pull it from the oven and let it sit briefly before digging in. This little rest helps flavors come together and makes serving easier. Right before bringing it to the table, throw on some fresh cilantro, avocado slices, and green onions for extra flavor and prettiness.

The sweet potatoes really make this dish something special for me. I found out how great they work when I was looking for a healthier twist on regular casseroles. Their natural sweetness balances perfectly with the savory beans and spices, and my kids actually ask for extra sweet potatoes whenever this is on the menu.
Make It Ahead
This dish works great for planning ahead. You can get everything ready up to the cheese-adding step, then stick it in the fridge for up to two days. When you're ready to eat, just sprinkle cheese on top and bake until hot and golden brown. It actually tastes even better after sitting a day as the spices blend more thoroughly.
Perfect Pairings
This black bean casserole goes wonderfully with a basic green salad drizzled with lime dressing for a full meal. If you're extra hungry, warm corn tortillas work great for scooping up the casserole. A spoonful of Greek yogurt or sour cream on top adds a nice creamy contrast to the spices.

Customization Options
You can easily switch things up based on what's in your kitchen. Don't have sweet potatoes? Butternut squash works just as well. Want it spicier? Keep the jalapeño seeds or add a tiny bit of cayenne pepper. Folks avoiding animal products can use dairy-free cheese or just skip it completely—the casserole still tastes fantastic without cheese, especially topped with fresh avocado slices.
Frequently Asked Questions
- → Can I prep this bake early?
Absolutely! You can assemble it and keep it in the fridge until you're ready to bake. Warm it in the oven before serving.
- → What can I swap for sweet potatoes?
Try butternut squash, zucchini, or regular potatoes for a different twist.
- → Does this dish have spice?
There’s a gentle kick from the jalapeño. To tone it down, skip the seeds or leave the pepper out.
- → What toppings go well with it?
Fresh cilantro, avocado, sour cream, or even crushed chips add great flavor. Pick what you like!
- → Is it possible to make this plant-based?
Sure thing! Swap in vegan cheese and ensure the rest of your ingredients suit a plant-based diet.