Looking for an easy, crowd-pleasing Mexican dish you can make on a busy night? This Instant Pot Mexican Ground Beef Casserole is a one-pot wonder, brimming with classic flavors, plenty of protein, and just the right amount of spice. It’s a hearty, comforting meal that comes together quickly with pantry staples, making it perfect for weeknights or meal prep.
Ingredients
- 1 pound ground beef (85% lean recommended)
- 1 tablespoon olive oil
- 1 medium yellow onion, diced
- 3 cloves garlic, minced
- 1 bell pepper, diced (any color)
- 1 cup frozen corn
- 1 (15-ounce) can black beans, drained and rinsed
- 1 (14.5-ounce) can diced tomatoes (with juices)
- 1 (8-ounce) can tomato sauce
- 1 cup low-sodium beef broth
- 2 teaspoons chili powder
- 1 teaspoon ground cumin
- 1 teaspoon smoked paprika
- 1/2 teaspoon dried oregano
- 1/2 teaspoon salt (plus more to taste)
- 1/4 teaspoon black pepper
- 1 cup long-grain white rice, rinsed
- 1 1/2 cups shredded Mexican cheese blend
- Chopped fresh cilantro, for garnish (optional)
- Lime wedges, for serving (optional)
Instructions
- Set your Instant Pot to Sauté mode. Add olive oil and let it heat for about 1 minute. Add ground beef and cook, breaking it up with a spoon, until browned (about 4-5 minutes). Drain excess fat if needed.
- Add diced onion, garlic, and bell pepper to the pot with the beef. Sauté, stirring frequently, until softened, about 3 minutes.
- Stir in chili powder, cumin, smoked paprika, oregano, salt, and black pepper. Cook for 1 minute to bloom the spices.
- Add the corn, black beans, diced tomatoes with juices, tomato sauce, beef broth, and rinsed rice. Stir well to combine, ensuring the rice is submerged in liquid (this helps it cook evenly).
- Cancel Sauté mode. Secure the Instant Pot lid and set the valve to Sealing. Cook on Manual (High Pressure) for 8 minutes.
- When the timer beeps, allow a natural pressure release for 10 minutes, then carefully turn the valve to Venting to release any remaining pressure.
- Open the lid and gently fluff the mixture with a fork. Sprinkle the shredded Mexican cheese blend over the hot casserole, then close the lid (do not seal) and let it sit for 2-3 minutes to melt the cheese.
- Garnish with fresh cilantro and serve with lime wedges, if desired.
Tips
- Substitutions: Swap ground turkey or chicken for ground beef for a leaner option. Pinto beans can replace black beans if preferred.
- Rice Type: Use regular long-grain white rice; brown rice requires a longer cook time and extra liquid, which may affect the texture.
- Spice Level: For more heat, add diced jalapeño or a pinch of cayenne when sautéing the vegetables.
- Prevent Burn Warning: Be sure to deglaze the pot after browning the beef by scraping up any browned bits before adding the rest of the ingredients.
Serving Suggestions
- Spoon the casserole into bowls and top with diced avocado, sour cream, extra cheese, or salsa.
- Serve as a filling for burritos or tacos—just wrap in warm tortillas with your favorite fixings.
- Pair with a side of tortilla chips for scooping.
- Add a crisp green salad with lime vinaigrette for a fresh contrast.
Variations
- Cheesy Enchilada Bake: Stir in a can of mild red enchilada sauce and use Monterey Jack cheese for a saucier, more decadent casserole.
- Fiesta Quinoa: Replace the rice with rinsed quinoa for a protein boost; reduce the broth to 3/4 cup and cook for only 1 minute at high pressure with a 10-minute natural release.
- Vegetarian Version: Omit ground beef and double the beans. Add extra veggies like zucchini or mushrooms for heartiness.
- Breakfast Skillet: Serve leftovers topped with a fried egg and a sprinkle of hot sauce for a savory breakfast.
Storage and Reheating
Allow the casserole to cool to room temperature before transferring to airtight containers. Store in the refrigerator for up to 4 days. For longer storage, freeze in freezer-safe portions for up to 2 months. Thaw overnight in the refrigerator before reheating.
To reheat, microwave individual portions on medium power for 2-3 minutes, stirring halfway through, until hot. To reheat larger amounts, place in a covered oven-safe dish and warm at 350°F (175°C) for 15-20 minutes. If the mixture seems dry, add a splash of broth or water before reheating.
Frequently Asked Questions
- Can I make this recipe with brown rice instead of white rice?
- Yes, but brown rice requires more liquid and a significantly longer cook time. If substituting, use 1 1/2 cups broth and set the Instant Pot to cook for 22 minutes at high pressure, with a 10-minute natural release. Note that the vegetables may become very soft with this extended cooking time.
- How do I avoid getting a burn warning on my Instant Pot?
- After browning the beef, be sure to scrape up any browned bits from the bottom of the pot with a wooden spoon and a splash of broth or water. This prevents the Instant Pot from detecting stuck-on food, which can trigger a burn warning. Also, ensure there is enough liquid in the pot before sealing and cooking.
- Can I double the recipe for a larger group?
- Yes, as long as you do not exceed the Instant Pot’s maximum fill line (never fill more than 2/3 full when cooking foods that expand, like rice). Double all ingredients, but keep the cooking time the same; the pot will simply take longer to come to pressure.
- Is this recipe gluten-free?
- Yes, as written, all the ingredients are naturally gluten-free. However, always check labels on canned beans, broth, and spices to ensure there are no added gluten-containing ingredients or cross-contamination.
- What if I don’t have Mexican cheese blend?
- You can use cheddar, Monterey Jack, pepper jack, or a combination of any melting cheeses you have on hand. For a dairy-free option, omit the cheese or use a plant-based cheese alternative.
- Can I prepare this recipe ahead of time?
- Absolutely! You can cook the entire casserole up to 4 days ahead and refrigerate it. For meal prep, portion into single-serve containers for easy grab-and-go lunches. The flavors deepen as it sits, making leftovers especially delicious.