Of course, there are many things you can serve with this delicious dish. For starters, pair your seafood tetrazzini with a crisp white wine, such as a Chardonnay or Sauvignon Blanc, to complement the creamy sauce. Then add a lighter side, such as a side salad (this Chopped Zucchini Salad would be perfect) or Instant Pot Steamed Broccoli to contrast the richness of the dish.