Air Fryer Empanadas

Name: Air-Fryer Empanadas
Ingredients: 1 teaspoon extra-virgin olive oil; ½ cup chopped yellow onion; ½ cup chopped red or yellow bell pepper; 8 ounces 90%-lean ground beef; 1 tablespoon salt-free taco seasoning mix; ½ teaspoon salt; ¼ teaspoon ground pepper; 1 large egg; 1 tablespoon water; All-purpose flour for rolling; 3 refrigerated pie crusts (1 1/2 packages); Chimichurri Sauce for serving