INGREDIENTS
6 tbsp
unsalted butter, divided
3
slices bacon, diced
1 cup
finely chopped yellow onion
1 tsp
red pepper flakes
2
garlic cloves, minced
3 tbsp
all-purpose flour
3 cups
whole milk
3 cups
coarsely grated sharp cheddar cheese, divided
1 cup
Parmesan cheese, grated
4 oz
cream cheese
3/4 cup
panko breadcrumbs
1/2 cup
chopped fresh parsley
1 lb
Penne