Meanwhile, in Round Steamer, crumble in beef. Cover; microwave on high 4 min. Once cooked, discard liquid. Use Ground Meat Separator to break up chunks of meat. Remove from steamer and place in a large bowl with corn.
While the beef is cooking, thinly slice bell pepper.
In same steamer (don’t wash) whisk together mix and milk. Microwave, uncovered on high for 4–5 min, whisking halfway through or until thickened. Stir in cheddar.
Add half the sauce, about 3⁄4 cup, to beef and corn. Stir to combine.
Divide meat mixture and peppers on one side of each tortilla. Fold tortilla over filling. Place on grill.
Grill for 5 min, flipping halfway through, or until lightly charred.
Serve with remaining sauce (reheat in microwave, if necessary).
Per serving: Calories 380, Fat 18 g (Saturated 9 g, Trans 0.4 g), Cholesterol 70 mg, Sodium 430 mg, Carbohydrate 29 g (Fiber 4 g, Sugars 5 g), Protein 26 g.