For the pasta and sauce
01 -
1 lb (450 g) medium pasta shells
02 -
4 tbsp unsalted butter
03 -
1 large sweet onion, diced
04 -
2 cloves garlic, minced
05 -
3 tbsp all-purpose flour
06 -
1 1/2 cups half and half
07 -
1 cup whole milk
08 -
12 oz fresh spinach (or 10 oz frozen, thawed and squeezed dry)
09 -
1 cup white cheddar cheese, shredded
10 -
3/4 cup gouda cheese, shredded
11 -
1/4 cup parmesan cheese, grated
12 -
1/2 tsp kosher salt
13 -
1/4 tsp black pepper
14 -
1/4 tsp ground nutmeg
For the topping
15 -
1/2 cup panko breadcrumbs
16 -
1/2 cup crispy fried onions, lightly crushed