Prepare the Shredded Beef:
Slow Cooker Method:
Heat olive oil in a large skillet over medium-high heat. Season the beef with salt and pepper, then sear on all sides until browned.
Transfer the beef to the slow cooker. Add beef broth, diced onion, garlic, chili powder, cumin, smoked paprika, and oregano.
Cook on low for 8 hours or high for 4–5 hours, until the beef is tender and shreds easily with a fork.
Pressure Cooker Method:
Follow the same searing steps. Add all ingredients to the pressure cooker. Cook on high pressure for 60 minutes, followed by a natural release.
Shred the Beef:
Remove the beef from the cooking liquid and shred it using two forks. Optional: Mix in some of the cooking liquid for extra flavor.
Assemble the Taquitos:
Preheat the oven to 400°F (200°C) if baking.
Warm the corn tortillas in the microwave for 20–30 seconds to make them pliable.
Place a small amount of shredded beef and cheese along the center of each tortilla. Roll tightly and secure with a toothpick if needed.
Cook the Taquitos:
Baking Method:
Place the rolled taquitos seam-side down on a baking sheet lined with parchment paper. Brush lightly with oil.
Bake for 15–20 minutes, or until golden and crispy.
Frying Method:
Heat 1–2 inches of oil in a skillet over medium heat. Fry the taquitos in batches, seam-side down, until golden and crispy, about 2–3 minutes per side. Drain on paper towels.
Serve:
Arrange the taquitos on a platter and garnish with cilantro. Serve with guacamole, sour cream, and salsa for dipping.