Creamy Pesto Shells

INGREDIENTS

8 oz

medium pasta shells

3 tbsp

olive oil, divided

1 pint

cherry tomatoes

Kosher salt and freshly ground black pepper,

1/2

medium sweet onion, diced

4 cloves

garlic, minced

1 tsp

Italian seasoning

2 tbsp

all-purpose flour

1 cup

chicken stock

1/2 cup

heavy cream

1 cup

shredded mozzarella cheese

1/2 cup

freshly grated Parmesan

2 cups

packed fresh baby spinach

1 1/2 cups

broccoli florets

1 1/2 cups

packed fresh basil

Kosher salt and freshly ground black pepper,

1 cup

chicken stock