Pioneer Woman Cheeseburger Pie: My Easy Comfort Food!

Ingredients

• 1 box (14.1 oz / 400g) refrigerated pie crusts (2 crusts)
• 1 large egg, beaten
• 1 tablespoon milk or water
• 1 tablespoon olive oil
• 1 pound (450g) ground beef, 80/20 blend recommended
• 1 medium yellow onion, chopped (approx. 1 cup / 150g)
• 1 green bell pepper, chopped (approx. 1 cup / 150g)
• 2 cloves garlic, minced
• 1 teaspoon salt
• ½ teaspoon black pepper
• 1 teaspoon Worcestershire sauce
• ½ teaspoon smoked paprika
• 1/4 cup ketchup
• 1/4 cup yellow mustard
• 1/2 cup dill pickle relish, drained
• 2 cups (approx. 8 oz / 225g) shredded cheddar cheese, divided
• 2 cups (approx. 8 oz / 225g) shredded Monterey Jack cheese, divided
• Optional: Sesame seeds for garnish