Tuna Noodle Casserole

Name: Tuna Noodle Casserole
Ingredients: Nonstick cooking spray; Kosher salt and freshly ground black pepper; 10.6 ounces (300 grams) medium shell pasta; 1/2 stick (4 tablespoons) unsalted butter; 1 stalk celery, finely diced; 1 yellow onion, finely diced; 2 cloves garlic, minced; 1/4 cup (32 grams) all-purpose flour; 2 cups (500 milliliters) chicken or vegetable broth; 1 cup (250 milliliters) whole milk; 1 cup (250 milliliters) frozen peas; 3/4 cup (60 grams) finely grated Parmigiano-Reggiano; 1 lemon, zested and juiced; 3 tablespoons parsley; 2 cans (6 ounces/170 grams each) flaked tuna, drained; 1 1/2 to 2 cups (about 500 milliliters) crushed plain crinkle cut chips; 1/2 cup (58 grams) grated Cheddar; Pinch smoked paprika, optional