Crockpot Oaxaca Queso Beef Barbacoa: Dump and Forget

This slow cooker beef barbacoa is the ultimate set-it-and-forget-it dinner. With just a few minutes of prep, you can layer beef chuck, green chiles, corn, and a mountain of Oaxaca and Mexican cheese into the crockpot, then walk away.

Hours later, you'll come back to a bubbling, blistered cheese blanket over tender, shreddable beef. It's the kind of meal that feels like a celebration but requires almost no effort. Serve it over rice, in tacos, or straight from the pot—everyone will be asking for the recipe.

This recipe turns a handful of simple ingredients into a rich, savory, and satisfying dinner that the whole family will love. The beef chuck cooks low and slow until it's melt-in-your-mouth tender, while the green chiles and corn add a subtle heat and sweetness.

The real star is the cheese: Oaxaca and a Mexican four-cheese blend melt into a blistered, golden crust that's impossible to resist. Best of all, the slow cooker does all the work—just dump in the ingredients and forget about it until dinner time.

Ingredients

Why this recipe works

The slow cooker is the perfect tool for tough cuts like beef chuck. The low, moist heat breaks down the connective tissue over several hours, turning the meat into shreddable, fork-tender perfection. This method requires no searing or browning, saving time and dishes while still delivering deep, rich flavor.

Layering the ingredients—meat on the bottom, then vegetables and seasonings, then cheese on top—allows each component to cook and meld without stirring.

The cheese melts and blisters on top, creating a caramelized, savory crust that adds texture and depth. As the beef cooks, its juices mingle with the chiles and corn, forming a naturally flavorful sauce.

Notes and substitutions

For the best flavor, use roasted green chiles—either fresh Hatch chiles that you roast yourself or jarred roasted chiles. If you prefer a milder heat, choose mild green chiles; for more kick, use hotter varieties like jalapeños or serranos. Sweet corn adds a pop of color and sweetness that balances the smoky, spicy notes.

Oaxaca cheese is a Mexican melting cheese with a stringy, mozzarella-like texture. If you can't find it, mozzarella or Monterey Jack works well.

The Mexican four-cheese blend typically includes cheddar, Monterey Jack, queso quesadilla, and asadero, all of which melt beautifully. For the best melt, shred the cheese yourself rather than using pre-shredded bags.

• roasted green chiles: canned diced green chiles (drained) or fresh Hatch chiles, roasted and peeled
• Oaxaca cheese: mozzarella or Monterey Jack cheese, shredded
• Mexican four-cheese blend: shredded cheddar, Colby, or a blend of your favorite melting cheeses
• taco seasoning: 1 tbsp chili powder, 1 tsp cumin, 1 tsp smoked paprika, 1/2 tsp garlic powder, 1/2 tsp onion powder, and 1/2 tsp salt

Equipment

• 6-quart slow cooker
• Measuring cups and spoons
• Cutting board and knife
• Serving spoon