Gluten-Free Sage & Onion Thanksgiving Stuffing with Slow Cooker Option

This homemade gluten-free sage and onion stuffing is a classic side. Made with toasted gluten-free bread cubes, fresh herbs, onion, and celery, it’s a savory complement to your Thanksgiving or holiday meal.

Why You’ll Love this Recipe

No gluten-free holiday table is complete without flavorful stuffing. This recipe elevates the traditional sage-and-onion stuffing by using toasted gluten-free bread cubes, plenty of butter, and fresh herbs—sage, parsley, and thyme—along with aromatic vegetables.

It’s a family favorite that works beyond Thanksgiving: serve it at Christmas, Easter, or any special dinner. The recipe is adaptable for dairy-free and egg-free diets, and you can easily add cooked sausage or prepare it in a crock pot to save oven space.

More Gluten-Free Thanksgiving Recipes

Round out your holiday menu with other gluten-free sides such as cornbread stuffing, corn casserole, sweet potato casserole, cranberry slaw, gluten-free cornbread and dinner rolls, pie crust, and turkey gravy. These options pair well with the sage-and-onion stuffing for a complete meal.

Ingredients and Substitutions

• Gluten-Free Bread: Use a gluten-free white loaf you enjoy eating. About 16 ounces (1 loaf) is typical.
• Turkey or Chicken Stock: Use turkey, chicken, or vegetable stock. Choose a labeled gluten-free stock or bouillon if needed. Turkey drippings can be added for extra flavor.
• Butter: Adds richness and flavor; use a dairy-free spread to make the recipe dairy-free.
• Eggs: Eggs help bind the stuffing and prevent sogginess. For an egg-free version, use flax eggs (see below).
• Onion, Celery, Garlic: These aromatics build the savory base.
• Fresh Herbs: Fresh sage, parsley, and thyme are recommended. If fresh herbs aren’t available, substitute dried herbs or 1 ½ teaspoons poultry seasoning.
• Seasoning: Kosher salt and black pepper to taste.

Money Saving Tip!
Save leftover bread, buns, and rolls in the freezer throughout the year and use them for stuffing so you don’t have to buy a fresh loaf just for this dish.

Other Dietary Substitutions

• Dairy-Free: Use gluten- and dairy-free bread and substitute vegan buttery sticks or olive oil for butter.
• Egg-Free: Make sure your bread is egg-free and use 2 flax eggs in place of the eggs.

To make 2 flax eggs: Combine 2 tablespoons flaxseed meal with 6 tablespoons water in a small bowl and let sit 5 minutes to thicken.

How to Make Gluten-Free Stuffing

• Step 1: Toast the Bread. Preheat the oven to 300°F. Cut the bread into 1-inch cubes and bake in a single layer on a rimmed sheet for 30–40 minutes, tossing occasionally, until dry and lightly golden like croutons.
• Step 2: Sauté the Vegetables. Melt butter in a skillet over medium heat. Add diced onion, celery, and minced garlic; sauté about 5 minutes until tender.
• Step 3: Whisk Broth and Eggs. In a large bowl, whisk together 2 1/4 cups turkey or chicken stock and 2 large eggs (or flax eggs for egg-free).
• Step 4: Combine. Stir the cooked vegetables, fresh or dried herbs, salt, and pepper into the broth mixture. Gently fold in the toasted bread cubes until evenly moistened but not mushy.
• Step 5: Bake. Transfer the mixture to a greased 9×13 pan or 2-quart casserole. Cover with foil and bake at 375°F for 30 minutes. Remove foil and bake another 15–20 minutes until the top is golden and the center reaches 165°F.

Can I add sausage to this stuffing?

Yes. Brown and crumble ½–1 pound Italian sausage before sautéing the onions and celery. Drain it on paper towels, then continue by sautéing the vegetables in the same pan and stir the cooked sausage into the final mixture.

Can I make stuffing in the Crock Pot?

Yes—this is a convenient way to save oven space or bring the dish to a gathering. After mixing everything together, place the stuffing in a greased slow cooker, cover, and cook on low for 4 hours instead of baking.

Can I put the stuffing in the turkey to cook?

Cooking stuffing inside the turkey is traditional but not recommended unless you take extra safety precautions. The stuffing must reach 165°F to be safe; often the turkey reaches doneness before the stuffing does, which risks undercooked stuffing or overcooked turkey.

To avoid this issue, bake the stuffing in a casserole dish, or remove it from the turkey when the bird is done and finish baking the stuffing separately until it reaches 165°F and browns on top.

Can I make stuffing ahead?

Yes. All options below can be done one day ahead:

• Assemble unbaked: Mix everything and refrigerate the unbaked stuffing in its casserole dish. Bring to room temperature before baking.
• Prep components: Toast the bread and sauté the vegetables ahead. Refrigerate the vegetable/broth mixture separately and combine with bread cubes before baking.
• Fully bake ahead: Bake the stuffing, then cool. Reheat at 350°F for about 30 minutes until warmed through.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven, microwave, or air fryer until warmed through to about 165°F.

I hope you enjoy this gluten-free sage-and-onion stuffing this holiday season. It’s a reliable, flavorful side that complements turkey and other festive mains.

Recipe