📌 Shrimp and Spinach Gratin with Gruyère

Posted 9 April 2026 by: Admin #Recipes

Prep Time

15 minutes

Cook Time

25 minutes

Total Time

40 minutes

Servings

4 servings

It’s Friday night, 7:00 PM, and friends are ringing the doorbell in an hour. This shrimp gratin is exactly for that. You assemble everything in twenty minutes, pop it in the oven, and go get changed while the oven does the work.

Final result — The gratin comes out of the oven just right, the cheese beautifully golden and the shrimp perfectly cooked under the crispy crust.

The surface arrives at the table with that precise color of Gruyère that has melted and then browned again—a warm brown leaning towards amber honey, dotted with small set bubbles. Under this crust, the cream has thickened gently around the pink shrimp and dark green spinach. The smell rising from the dish mixes the lactic scent of toasted cheese with something slightly briny, like the sea. When you dip your spoon in, it first meets a crunchy resistance, then sinks into something very soft.

Why you’ll love this recipe

✓Ready in 40 minutes flat : No sauce to watch over, no multi-stage cooking. You sauté the spinach for five minutes, assemble the dish, and bake. That’s really it.

✓Impressive without visible effort : A gratin fresh from the oven with a beautiful golden crust is impressive. No one will guess you only spent twenty minutes in the kitchen.

✓Appetizer or main course depending on your mood : In small individual ramekins with toasted bread, it’s an appetizer that sets the tone. In a large dish with basmati rice, it becomes a full dinner.

✓Very little washing up : One pan, one gratin dish. That’s about it. On an evening with guests, that really matters.

Ingredient Notes

Ingredients

Shrimp, fresh spinach, cream, Gruyère, and Parmesan: simple ingredients that give a stunning result.

The shrimp : Get them raw—frozen and peeled is perfect and much easier than fresh. Pre-cooked shrimp will overcook in the oven and become rubbery. Medium to large size gives more bite.
The Gruyère : This is what makes the crust. It melts differently than Emmental—fatsier, more intense, it creates that lacquered surface that browns well. Buy it in a block and grate it yourself; pre-grated bags are too dry and don’t melt the same way.
Heavy cream : No light cream here. Heavy cream holds up to heat without separating and gives that coating consistency we’re looking for. Minimum 30% fat, liquid—not thick.
Fresh spinach : Two large handfuls seem like a lot before cooking. After two minutes in a hot pan, there will barely be a cup left. Frozen works too—thaw them well and squeeze them dry by hand before use.
Lemon zest : A detail many skip, wrongly. It cuts through the richness of the cream and cheese with something bright. Half an organic lemon is enough—rub the skin on a fine grater and add just before baking.

Let the spinach release its water first

Heat a pan over high heat with olive oil and minced garlic. The garlic should sizzle as it touches the pan—that sharp, dry sound is the signal that the temperature is right. Toss in the spinach all at once and stir constantly. What was overflowing the pan becomes a dark, compact mass in two minutes. Remove from heat as soon as they wilt. Salt lightly. No need to drain if your heat was high enough.

Assemble the dish without overthinking

Preheat the oven to 200°C. In a gratin dish, spread the spinach in an even layer. Arrange the raw shrimp on top—they cook in the oven, don’t sauté them beforehand. Mix the cream with the lemon zest, a good pinch of salt, and freshly ground black pepper. Pour over everything. The cream should roughly cover the shrimp without completely drowning them.

The cheese last, a generous layer

Mix the grated Gruyère and Parmesan, then distribute them without holding back. It’s this layer that protects the filling during cooking and creates the crust. Parmesan brings salt and bite. Gruyère brings the melt and the color. The two together are better than separately.

Don’t touch anything for 20 minutes

Bake in the middle of the oven for 20 to 25 minutes. Do not open before 18 minutes. The cream should bubble at the edges and the surface should be a golden brown leaning towards honey—not pale blond, not too dark brown. If the surface lacks color after 25 minutes, pop it under the broiler for 2 minutes while watching closely. Take the dish out and wait 3 minutes before serving. The shrimp finish cooking in the residual heat and the cream stabilizes.

Tips & Tricks

If using frozen spinach, squeeze it really thoroughly—palm pressed against a sieve, pressing hard. Excess water dilutes the cream, and you’ll end up with a floating gratin.
For an individual appetizer version: 15 cm ramekins, 15 minutes of cooking is enough. The effect on the table is guaranteed.
The dish can be assembled 2 hours in advance and sit quietly in the fridge. Take it out 15 minutes before baking so as not to extend the cooking time.

Close-up — The melted Gruyère pulls away in golden strings, revealing juicy shrimp nestled in the creamy spinach.

FAQs

Can this gratin be prepared in advance?

Yes, and it’s actually recommended for a dinner with guests. Assemble the complete dish up to the cheese step, cover with plastic wrap, and keep in the fridge for up to 2 hours. Take it out 15 minutes before baking to avoid extending the cooking time.

Can frozen shrimp be used?

Yes, it’s even the most practical solution. Thaw them completely and dry them well with paper towels before adding them to the dish—the water they release will otherwise dilute the cream. Above all, use raw ones, not pre-cooked.

Can Gruyère be replaced with another cheese?

Emmental works but will give a more neutral and less browned crust. Comté is an excellent, more aromatic option. Avoid mozzarella alone—it melts well but doesn’t color and releases water.

How to store leftovers?

The gratin keeps for 2 days in the refrigerator, covered. Reheat in the oven at 180°C for 10 minutes rather than in the microwave, which softens the crust and makes the shrimp rubbery.

Can frozen spinach be used instead of fresh?

Absolutely. Thaw them and then squeeze them hard by hand over the sink—they contain a lot of water that must be removed before putting them in the dish. Count about 200g of frozen to replace 100g of fresh.

What is the best way to tell if the gratin is cooked?

The cream should bubble at the edges of the dish and the surface should be a golden brown leaning towards honey. If the surface remains pale after 25 minutes, turn on the broiler for 2 minutes while watching. The shrimp are cooked as soon as they are opaque and pink.