These Southwest black bean burgers are a grilled veggie patty built from black beans, portobello mushrooms, tomato paste, green chilies, and sriracha — finished with Monterey Jack cheese and fresh jalapeño. They come together in one bowl in about 15 minutes and cook in 12, which makes them genuinely practical when you’re feeding a group. The heat level is real but not punishing, and the mushrooms give the patties enough body that they hold up on the grill.
Shopping notes
- Black beans: Two 15-ounce cans equal the 30 ounces called for. Drain and rinse them well — excess liquid makes the mix too wet to form clean patties.
- Green chilies: One standard 4-ounce can of diced green chilies works. Hatch green chilies add more flavor if you can find them, but the regular canned variety is fine.
- Croutons: Any plain or lightly seasoned croutons work as the binder. Avoid heavily flavored varieties like Caesar — they fight the other seasonings. A half cup processes down to roughly the right amount of crumbs.
- Portobello mushrooms: Six medium caps is a lot — roughly 12–14 ounces. Chop them fine so they blend into the patty rather than creating wet chunks that cause crumbling.
- Whole wheat buns: These patties are dense and savory, so a sturdy bun holds up better than a soft white roll.
Why this recipe works
Two things keep these patties from falling apart on the grill. First, the crouton crumbs act as a dry binder that absorbs moisture from the beans and mushrooms — skip the egg in the mix, it makes the patty mushy. Second, placing the formed patties on greased aluminum foil before they go on the grill gives them time to firm up from the heat before you attempt to flip them. Trying to move them too early is the main reason veggie patties break. The tomato paste also helps here: it acts as a natural glue that holds the mixture together once it hits heat.
Mistakes to avoid
- Not chilling the patties before grilling: If you have time, refrigerate the formed patties for 20–30 minutes before cooking. Cold patties hold their shape far better on the grill. This matters especially when you’re making the full batch of eight.
- Skipping the foil or using ungreased foil: These patties will stick and tear. Grease the foil generously, or use a well-oiled grill basket instead — both work for a full batch.
- Under-processing the croutons: Coarse crouton chunks don’t bind evenly. Pulse until the texture is close to fine breadcrumbs — no pieces larger than a pea.
- Overcrowding the grill: Eight patties need space. If your grill surface is small, cook in two rounds and keep the first batch warm in a 200°F oven on a sheet pan while the second batch finishes.
- Adding the cheese too early: Lay the Monterey Jack on during the last 2–3 minutes of cook time. Adding it at the start means it melts off the patty and onto the foil before the burger is done.
Leftovers and meal prep
Cooked patties keep in an airtight container in the refrigerator for up to 4 days. To reheat, use a skillet over medium heat with a small splash of water and a lid — about 3 minutes per side — rather than the microwave, which makes them rubbery. For freezing, stack uncooked formed patties between sheets of parchment paper, seal in a zip-top bag, and freeze for up to 2 months. Thaw overnight in the fridge before grilling; do not cook from frozen or the outside chars before the center heats through. If you’re prepping for a cookout, making the patties the night before and refrigerating them overnight actually improves their texture — they firm up considerably.
Yummy Southwest Black Bean Burgers
Ingredients
- 30 ounces black beans organic
- 6 ounces tomato paste
- 6 medium portobello mushrooms finely chopped
- 4 ¼ ounces green chilies
- ½ cup croutons
- 2 tablespoons olive oil
- 3 tablespoons sriracha
- 2 medium jalapeño
- 1 cup Monterey Jack cheese
- 8 medium burger buns whole wheat
Instructions
- Grind the croutons in a food processor until breadcrumb like. Deseed and chop the jalapeños, and set them aside.
- In a large bowl, roughly “mush” the black beans using a large spoon. Add the tomato paste, mushrooms, and chilies.
- Mix in the crouton crumbs. Drizzle with olive oil and a big squirt of Sriacha. Form into 8 patties (about 1/2 inch thick) and place onto greased aluminium foil to keep the patties together.
- Top with sliced cheese and chopped jalapeños. They will take about 12 minutes at 300 degrees Fahrenheit on the grill.
Nutrition
FAQ
Can I cook these on a stovetop instead of a grill?
Yes — a cast iron or nonstick skillet over medium heat works well. Cook about 5–6 minutes per side until a firm crust forms on each face and the patty is heated through to the center.
How do I know when the patties are done?
These are fully cooked vegetarian patties, so you’re looking for a firm exterior crust and a hot center rather than an internal temperature target. At 300°F on the grill, 12 minutes total is enough — press the center gently with a spatula; it should feel firm, not soft or squishy.
Can I make these gluten-free?
Yes, with one swap: replace the croutons with gluten-free breadcrumbs or crushed gluten-free crackers at the same volume. Also confirm your burger buns are gluten-free — everything else in the recipe is naturally gluten-free.
How spicy are these, and can I dial the heat up or down?
With 3 tablespoons of sriracha and 2 jalapeños, these have a noticeable but moderate heat. To reduce it, cut the sriracha to 1 tablespoon and omit the jalapeño seeds; to increase it, add a pinch of cayenne to the mix or leave the jalapeño seeds in.
Can I double the recipe for a large cookout?
Doubling to 16 patties is straightforward — the one-bowl method scales without any technique changes. Mix in two large bowls to avoid overcrowding, and plan your grill space in advance so you’re not trying to cook all 16 at once.
What can I use instead of Monterey Jack cheese?
Pepper Jack is the most natural swap and adds extra heat that fits the flavor profile. Mild cheddar also melts well and works if you want to tone down the spice.
More burger recipes to try
- Veggie Sauce Burger Perfection
- Five Guys Veggie Sandwich Style
- Veggie Whopper Copycat Recipe
- Spicy Jalapeño King Burger