Impress your guests and family with this fast and creamy, from scratch chicken and pasta casserole! My kids love the creamy pasta in this homemade chicken tetrazzini with mushrooms. It’s made with a super EASY white wine sauce that’s tossed with cooked pasta, chicken, and frozen peas to create a luscious, comforting, and family friendly chicken casserole for dinner. Making a homemade sauce is easier than you think, and anyone can easily whip this up for a weeknight meal in just 40 minutes!