Slow-Cooker Skirt Steak Fajita Dip with Oaxaca Cheese

This slow-cooker skirt steak fajita dip is the ultimate set-it-and-forget-it dinner. Tender strips of beef simmer in a zesty tomato-jalapeño sauce under a blanket of melted Oaxaca and Mexican cheeses.

With just five ingredients and five minutes of prep, it delivers rich, savory flavor with almost no effort. Serve it over rice, scoop it up with tortilla chips, or stuff it into warm tortillas for a satisfying meal that feels like a fiesta.

This recipe turns a handful of pantry staples into a hearty, cheesy main dish. Skirt steak strips cook low and slow until they’re spoon-tender, while fire-roasted tomatoes and pickled jalapeños add smoky, tangy heat.

The Oaxaca cheese melts into a stretchy, luxurious blanket that coats every bite. It’s perfect for busy weeknights, game-day spreads, or any time you want a warm, comforting meal without spending hours in the kitchen.

Ingredients

Why this recipe works

The slow cooker does all the work: low, gentle heat breaks down the connective tissue in skirt steak, turning it meltingly tender.

The long cooking time also allows the flavors of the tomatoes, jalapeños, and cheese to meld into a rich, cohesive sauce. Because the ingredients are simply layered and left alone, there’s no stirring, no watching, no fuss.

The combination of Oaxaca cheese and Mexican four-cheese blend creates a double layer of creamy, gooey goodness.

Oaxaca cheese is a stringy, mild cheese that melts beautifully, while the four-cheese blend adds sharpness and depth. The pickled jalapeños provide a pop of acidity and heat that cuts through the richness, balancing every bite.

Notes and substitutions

Choose skirt steak that is well-marbled; it becomes incredibly tender after slow cooking. If you can’t find skirt steak, flank steak or sirloin strips work well. For a milder version, use mild diced tomatoes and reduce the jalapeños. For extra heat, add a minced fresh jalapeño with the tomatoes.

Shredding the cheese yourself from a block ensures the best melt and prevents the anti-caking additives in pre-shredded cheese from affecting the texture. Oaxaca cheese is available in most supermarkets; if unavailable, substitute mozzarella or Monterey Jack. The pickled jalapeños add a tangy kick—adjust the amount to your preference.

• Oaxaca cheese: mozzarella or Monterey Jack cheese
• fire-roasted diced tomatoes with green chiles: regular diced tomatoes plus a diced jalapeño
• pickled jalapeños: fresh jalapeño slices (add more heat if desired)
• Mexican four-cheese blend: cheddar or Colby Jack cheese

Equipment

• 6-quart slow cooker
• Cutting board
• Chef's knife
• Measuring cups
• Serving spoon