Corned Beef Tater Tot Casserole

Name: Corned Beef Tater Tot Casserole
Ingredients: 1 tablespoon olive oil; 2 ( 12 - ounce ) cans corned beef (such as Libby’s); 1 small yellow onion , chopped; 1 medium green bell pepper , cored and chopped; 8 ounces Cheddar cheese , shredded (about 2 cups); 1 ( 28 - ounce ) package frozen potato tater tots; 12 large eggs; 1/2 cup whole milk; 1/4 teaspoon black pepper; 1 teaspoon kosher salt , divided; 2 teaspoons smoked paprika; 1 teaspoon chili powder; 1/2 teaspoon garlic powder; Sliced pickled jalapeños if desired, for garnish