Freezer Breakfast Burritos

Name: Freezer Breakfast Burritos
Ingredients: Soft butter or nonstick vegetable oil spray, for greasing the pan; 1 (28-ounce) bag frozen shredded hash browns; 2 teaspoons vegetable oil; 1 large yellow onion, finely diced; 1 poblano, cubanelle, or other mild green pepper, finely diced; 8 large eggs; 1/4 cup sour cream; 1 tablespoon cornstarch; 2 teaspoons kosher salt; 1/2 teaspoon ground cumin; 1 teaspoon sweet paprika; 1 (15.5-ounce) can pinto beans, drained and rinsed; 1 chipotle chile in adobo, minced; 1/2 cup sliced scallions or chives; 8 ounces Monterey Jack or Pepper Jack cheese, grated (about 2 cups); 8 (10-inch) flour tortillas; Sour cream and hot sauce, for serving