Turkey tetrazzini is a delicious casserole that's perfect for using up leftover Thanksgiving turkey. This dish has a creamy sauce and crispy fried onions on top.
Cook the sliced mushrooms in two tablespoons of vegan buttery spread in a large pan until they are browned and cooked through, about 5-6 minutes.
In the last minute or so of cooking time, add the frozen peas and carrots to the mushrooms.
While you cook the vegetables, cook the pasta according to package directions. Drain and set aside.
Make the cream sauce:
Cook the gluten free flour in the vegan buttery spread over medium heat for about 3 minutes to get rid of the raw flour taste.
Slowly add the non-dairy milk, chicken broth, white wine, salt, pepper, garlic powder, onion powder, and Italian seasoning. Raise the heat to medium high and bring to a simmer, then reduce the heat to medium. Cook for about 5 minutes until the sauce starts to thicken.
Taste the sauce to see if you need to add more salt and pepper.
Add the cooked turkey, cooked pasta, dairy free sauce, and dairy free cheese to the pan with the vegetables. Stir well.
Pour the mixture into a 9x13 casserole dish. Top with the fried onions or gluten free bread crumbs if you prefer.
Bake at 350 degrees F for 25 minutes. Allow to cool for a few minutes before serving.
Notes
Store leftovers in the refrigerator. If your turkey is fresh, they should stay good for 3-4 days. If your turkey is already a couple of days old, this casserole should be eaten in 2 days.You can also freeze this - make it in a foil pan or other freezer safe pan and wrap tightly in foil. Store in the freezer for up to 3 months.