This is the heart of the chimichanga! In your large skillet, cook the [ground beef] and [onion] over medium-high heat until the beef is browned. Olivia’s tip: Drain any excess grease before moving on, we want flavor, not sogginess!
Now add the flavor! Stir in the [garlic], [chili powder], [cumin], [paprika], [salt], and [black pepper]. Cook for just one minute until the spices are fragrant. Then, stir in the [salsa] and [refried beans] (if using). Let it simmer for a few minutes until it thickens slightly, then remove it from the heat to cool for 5 minutes.
You can’t rush the tortillas! Warm the [flour tortillas] slightly (about 20 seconds in the microwave wrapped in a damp paper towel). This makes them bendy and easy to roll, which is the most important part of making a tight chimichanga!
Place about ⅓ cup of the filling mixture in the center of a tortilla, and top with ⅓ cup of [shredded Mexican cheese blend]. Fold the sides in, then roll it up tightly from the bottom, like a present (Little Olivia's favorite job!). You can secure it with a toothpick if needed.
Heat about 2 inches of [Vegetable oil] in your deep skillet to 350°F. This temperature is key! Carefully place 1–2 chimichangas, seam-side down, into the oil. Fry for 2-3 minutes per side until they are perfectly golden brown and crispy. Drain them on paper towels and don't forget to remove the toothpicks before serving!