12 ounces uncooked linguine pasta
4 cups low-sodium chicken broth (or for that white wine flavor, use 1 cup of white wine + 3 cups of broth)
1 cup frozen diced onion, thawed
2 tablespoons minced garlic (or more if you like it really garlicky!)
4 ounces (about 1 cup) shredded mozzarella cheese
1/2 cup grated Parmesan cheese, divided (plus additional for serving)
1 lb. large (31-40 count) peeled and deveined shrimp (frozen is fine), thawed
Chopped fresh parsley