Keto Chicken Tetrazzini brings all the satisfaction of a cozy, baked casserole, without the carb overload. It’s rich, creamy, and just as comforting as the traditional version, but made with a low carb twist that keeps it aligned with your goals. This dish works for busy weeknights, make-ahead meals, or even special occasions when you want something a little more indulgent but still on track.
What makes it stand out is the combination of texture and depth. From the tender filling to the savory sauce and bubbly finish, it gives you that classic baked comfort without relying on pasta or flour-based sauces. Once it’s in the oven, all that’s left to do is wait for the golden top and bubbling edges to tell you it’s ready.
What to Eat With Keto Chicken Tetrazzini
This casserole is hearty on its own, but sometimes you want a little something on the side to round out the plate. Keep it low carb and simple so the flavors don’t compete.
- Steamed or roasted broccoli with butter
- A light spinach or 4 bean salad with olive oil and vinegar
- Roasted green beans or asparagus
- A side of buffalo cauliflower
- Buttered sautéed zucchini or summer squash
These sides help balance out the richness of the dish while keeping things keto-compliant.
Substitutions for Keto Chicken Tetrazzini
While the core ingredients work beautifully together, it’s helpful to have a few flexible options if you’re working with what’s already in your fridge.
- Palmini noodles → zucchini noodles, spaghetti squash, or shirataki noodles
- Rotisserie chicken → leftover turkey, shredded chicken breast, or chopped cooked thighs
- Mozzarella cheese → provolone or Monterey Jack
- Parmesan → pecorino romano or asiago
- Olive oil → avocado oil or ghee
Each of these substitutions still keeps the recipe low carb and allows for slight variations in taste and texture.
Storage and Reheating
Once cooled, leftovers can be stored in an airtight container in the refrigerator for up to 4 days. To reheat, place a portion in an oven-safe dish and warm at 325°F until heated through. You can also microwave it in 30-second bursts, though the oven or toaster oven will help preserve the original texture best.
Why This Recipe Works for Busy Days
One of the best things about this Keto Chicken Tetrazzini is how fast it comes together using simple, store-bought shortcuts like rotisserie chicken and canned noodles. There’s no need to boil anything, make a roux, or spend time prepping separate ingredients. Everything cooks in one pan and finishes in the oven, making cleanup minimal.
It also works well for meal prep. You can assemble the casserole up to a day in advance and refrigerate until ready to bake. That makes it ideal for busy nights when you want a hot, homemade meal but don’t want to start from scratch.
Keto Chicken Tetrazzini
Ingredients
- 8 ounces shredded rotisserie chicken
- 1 can palmini linguini drained and rinsed
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- ½ medium onion chopped
- 1 cup sliced mushrooms
- 1 teaspoon Italian seasoning
- 3 teaspoons minced garlic
- ½ cup chicken broth
- ½ cup heavy whipping cream
- ½ cup shredded mozzarella cheese
- ½ cup grated parmesan cheese
- Salt and pepper to taste
Instructions
- Preheat the oven to 350°F and grease a 9×9-inch casserole dish.
- Heat the butter and olive oil in a large skillet over medium-high heat.
- Add the chopped onion and sauté for 2 to 3 minutes until it begins to soften.
- Stir in the mushrooms and cook for 1 more minute.
- Add the minced garlic and sauté for an additional 30 seconds.
- Whisk in the Italian seasoning, chicken broth, and heavy cream. Let the mixture cook until it begins to thicken.
- Add in the mozzarella and parmesan, whisking until the sauce is thick and creamy.
- Stir in the shredded chicken and drained palmini noodles. Cook just until the mixture is slightly reduced and most of the liquid is absorbed.
- Transfer everything to the prepared casserole dish.
- Bake for 30 minutes, or until the top is golden and the sauce is bubbling.