Savory Vegetable Gratin with Nutmeg
A layered gratin featuring seasonal vegetables slowly baked to golden perfection, embodying the thoughtful care required for a truly serious side dish. This french-inspired vegetarian ready in about 80 minutes pairs medium, thinly sliced potatoes, medium, thinly sliced zucchini, medium, thinly sliced red onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 2 medium, thinly sliced potatoes
- 1 medium, thinly sliced zucchini
- 1/2 medium, thinly sliced red onion
- 3 tbsp, chopped fresh thyme
- 2 tbsp all-purpose flour
- 1 cup whole milk
- 3 tbsp unsalted butter
- 1 cup grated Gruyère cheese
- 1/2 cup grated Parmesan cheese
- 1/4 tsp fresh nutmeg
- 1/2 tsp sea salt
Instructions
- Step 1: Preheat oven to 375°F. In a saucepan, melt 3 tbsp unsalted butter over medium heat, then whisk in 2 tbsp all-purpose flour to form a roux, cooking for 1 minute until golden.
- Step 2: Gradually whisk in 1 cup whole milk while simmering for 4 minutes until thickened, then stir in 3 tbsp chopped fresh thyme, 1/4 tsp fresh nutmeg, and 1/2 tsp sea salt.
- Step 3: In a 9x13-inch baking dish, layer 1/3 of the 2 sliced potatoes, 1/3 of the sliced zucchini, and 1/3 of the sliced red onion, then pour 1/3 of the cheese sauce over the top. Repeat layers twice, ending with a final layer of cheese sauce.
- Step 4: Sprinkle 1 cup grated Gruyère and 1/2 cup grated Parmesan evenly over the surface, then bake uncovered for 50 minutes until bubbling and golden brown around the edges.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Savory Vegetable Gratin with Nutmeg take to make?
Total time is about 80 minutes (30 min prep + 50 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Savory Vegetable Gratin with Nutmeg?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep chopped fresh thyme from drying out.
Can I substitute ingredients in Savory Vegetable Gratin with Nutmeg?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Savory Vegetable Gratin with Nutmeg for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Savory Vegetable Gratin with Nutmeg?
French vegetarian like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
This has become our go-to vegetarian dish. We make it weekly.
- ★★★★★
Love how the French come through in every bite.
- ★★★☆☆
It was fine. Came out a bit bland for my taste.
