Springtime Pasta Bake | Lazy Cooking

Ingredients

• 4 quarts water
• 1/4 cup plus 1 1/2 teaspoons kosher salt, divided
• 1 (16-ounce) package fresh kale, chopped
• 4 cups whole milk
• 6 tablespoons salted butter, cold and cut into pieces
• 1 cup yellow onion, chopped
• 6 tablespoons all-purpose flour
• 1 (8-ounce) package Monterey Jack cheese, shredded
• 1 teaspoon hot sauce
• 1/2 teaspoon black pepper
• 8 ounces medium shell pasta, cooked
• 1/2 cup panko breadcrumbs
• 1 tablespoon olive oil