Breakfast
Freeflourish
Gluten-Free Cheesy Herb Polenta Casserole
By Freeflourish Test KitchenReviewed by Freeflourish Editorial TeamPublished Apr 29, 2026 · Updated May 11, 2026
Italian-inspired
55 mins
glutenfreevegetarianbakingfamilymealhighproteinonepoteasysidedishquickrecipescomfortfood
Savor this comforting, Italian-inspired gluten-free baking recipe featuring creamy polenta blended with melted cheeses and fresh herbs. Ideal for family-friendly meals, this one-pot casserole is high-protein, easy to prepare, and perfect as a side dish or light main course.
Prep
15 min
Cook
40 min
Total
55 min
Servings
6
Difficulty
easy
Cuisine
Italian-inspired
Ingredients
Servings
6
- 1 cup gluten-free coarse yellow polenta (cornmeal)
- 4 cups low-sodium vegetable broth
- 1 tablespoon olive oil
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/2 teaspoon dried thyme
- Salt and freshly ground black pepper, to taste
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/2 cup ricotta cheese
- 2 tablespoons chopped fresh parsley
- 2 tablespoons chopped fresh basil leaves
- 1/4 teaspoon red pepper flakes (optional)
- Olive oil or nonstick spray for greasing baking dish
Instructions
-
Preheat your oven to 375°F (190°C). Lightly grease a 9x9-inch (or similarly sized) baking dish with olive oil or nonstick spray.
-
In a medium saucepan, heat olive oil over medium heat. Add chopped onion and garlic; sauté until softened and fragrant, about 3-4 minutes.
-
Add the dried oregano, basil, thyme, salt, and pepper to the onions and garlic, stirring for 30 seconds to release the aromas.
-
Slowly whisk in the vegetable broth, bringing the mixture to a gentle boil.
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Gradually whisk the polenta into the boiling broth mixture, reducing heat to low. Continue whisking frequently to prevent lumps and cook the polenta until thickened and creamy, about 10-15 minutes.
-
Once the polenta is thick and creamy, remove from heat. Stir in half of the shredded mozzarella, all the ricotta cheese, and half of the Parmesan cheese until well combined.
-
Stir in the fresh parsley, fresh basil, and red pepper flakes if using. Adjust seasoning with salt and pepper to taste.
-
Pour the polenta mixture evenly into the prepared baking dish. Sprinkle the remaining mozzarella and Parmesan cheese evenly on top.
-
Bake uncovered in the preheated oven for 25-30 minutes, until the top is golden brown and bubbly.
-
Remove from the oven and let rest for 5 minutes before serving to set.
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Serve warm as a hearty, cheesy, herb-infused side dish or light main course that’s perfect for gluten-free family meals.
Frequently Asked Questions
Reader questions and answers for this recipe will appear here.
This Gluten-Free Cheesy Herb Polenta Casserole is adaptable for various dietary needs. Consider these ingredient swaps to match your preferences:
- Dairy-Free: Substitute mozzarella, Parmesan, and ricotta with dairy-free cheeses such as cashew-based alternatives or nutritional yeast for cheesy flavor without dairy.
- Nut-Free: Naturally nut-free; if using dairy-free cheese, ensure it’s also nut-free to maintain allergen safety.
- Vegan: Use vegetable broth (already included) and replace all cheeses with vegan cheese or use cashew cream for richness.
- Lower-Carb: Polenta is higher in carbs; try substituting cauliflower mash for a lower-carb texture, noting that the mouthfeel will change.
- Boost Protein: Add cooked lentils, chickpeas, or crumbled tempeh into the polenta before baking to increase protein content.
- Herbs & Spices: Swap fresh parsley and basil for other herbs like thyme, oregano, or rosemary to suit your taste or seasonal availability.
- Broth Options: Use gluten-free chicken broth instead of vegetable broth for a richer flavor if not adhering to vegetarian diets.
These substitutions keep the casserole flavorful while accommodating glutenfree, dairyfreeoptions, vegan, and other lifestyle preferences.
Allergen Overlap Note
While all recipes in our gluten-free category are carefully crafted to avoid gluten-containing ingredients, individuals with other allergen sensitivities should exercise caution. Many gluten-free recipes across categories like Breakfast, Lunch, Dinner, Desserts, Snacks, Soups & Salads, Gluten-Free Baking, Quick & Easy, Family-Friendly, Holiday & Seasonal may include or be prepared alongside common allergens such as dairy, nuts, soy, or eggs.
To minimize risk, consider these best practices when preparing gluten-free dishes:
- Use dedicated gluten-free and allergen-free utensils and cookware when possible.
- Clean all surfaces and tools thoroughly before starting your recipe.
- Store ingredients separately to prevent cross-contact.
- Check packaged ingredient labels carefully for allergen warnings, especially hidden gluten or nuts.
- Utilize allergen-friendly substitutions noted in recipe guides or tips.
Our recipes also use tags such as dairyfree, nutfree, vegan, vegetarian, lowcarb to assist your selection. However, sensitivities vary, so always tailor ingredient choices and preparation methods to your household’s specific needs.
For comprehensive allergen management and cross-contamination prevention, consult a healthcare provider or allergist when introducing new recipes for sensitive individuals.
Texture Expectations
Gluten-free casseroles like this Cheesy Herb Polenta Casserole offer a unique texture compared to traditional wheat-based bakes. Without gluten’s elasticity, expect a tender, denser crumb that’s naturally comforting.
The coarse gluten-free polenta creates a creamy yet lightly grainy mouthfeel — reminiscent of a warm porridge with a golden, bubbly cheese crust. The cheeses melt into the polenta, creating gooey pockets balanced by fresh herbs. Baking develops a lightly crisp top layer for pleasant texture contrast against the moist interior.
Texture may vary based on polenta coarseness and cheese blends. Stirring frequently during cooking yields a smoother, creamier polenta. For a firmer casserole, allow it to rest fully after baking to set slices.
Overall, this dish delivers a comforting, tender, creamy texture that fits perfectly as a hearty gluten-free side or a light main course, ideal for family-friendly, high-protein meals.
Dining With Non Gf Family Note
Sharing meals between gluten-free and non-gluten-free family members can be easy and enjoyable with mindful preparation. Whether making recipes from categories like Breakfast, Lunch, Dinner, Desserts, Snacks, Gluten-Free Baking, Family-Friendly, Holiday & Seasonal, follow these tips to prevent cross-contamination and keep everyone safe:
- Designate Separate Cooking Tools: Use specific cutting boards, pots, pans, toasters, and utensils for gluten-free foods. Clean shared appliances thoroughly before gluten-free use.
- Separate Storage: Store gluten-free flours, grains, and snacks apart from gluten-containing products.
- Label and Read Ingredients: Check labels carefully to avoid hidden gluten in sauces, seasonings, and processed foods marked glutenfree or dairyfreeoptions.
- Cook Gluten-Free First: Prepare gluten-free dishes before gluten-containing foods when possible.
- Clear Communication: Educate family members on not sharing utensils or dipping foods between gluten-free and gluten meals.
- Thorough Cleaning: Wash hands, surfaces, and tools thoroughly before and after handling gluten-containing foods.
- Use Separate Serveware: Serve gluten-free dishes in clearly marked or separate plates and bowls to avoid mix-ups during meals.
Following these steps promotes inclusive, safe mealtime experiences with recipes suitable for kidfriendly, quickrecipes, onepot meals, and holidayclassic favorites.
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