This baked halibut is a quick and easy one-pan meal that’s perfect for a weeknight dinner. Everything is cooked together on a baking sheet, which makes a great no-fuss meal.
I made a soy-glazed salmon and asparagus sheet pan dinner recently, and decided I should make a similar recipe with another kind of fish. The first time I made the halibut recipe, the fish wasn’t done to my liking, but the veggies were perfect. The marinade also didn’t pack as much flavor the first time. I made several adjustments and made it again. The second time around I figured out a better balance on the cooking time for the vegetables vs. the fish. I also increased the amount of dijon in the topping. The fish was nice and flaky, with a nice tang in the sauce from the dijon and lemon. The potatoes and green beans were cooked nicely, with a tad bit of browning. The dijon and lemon provide nice base flavors for the potatoes and green bean, and the parmesan cheese provides a nice balance.
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Continue reading below the recipe card for step-by-step photos.
Dijon & Dill Baked Halibut With Potatoes & Green Beans {Sheet Pan Meal}
Equipment
- Parchment paper, aluminum foil, or silicone baking mat
Ingredients
Halibut
- 2 pieces halibut
- 1 tbsp dijon mustard
- ½ lemon juice and zest
- ¼ tsp kosher salt
- ½ tsp dried dill weed
- ½ tsp olive oil
- 1 clove garlic minced or grated
Potatoes & Green Beans
- ½ lb red potatoes cut small
- 7 oz green beans
- 2 tsp Dijon mustard
- 1 clove garlic
- 2 tbsp grated parmesan cheese
- ½ lemon juice and zest
- olive oil
- 1 pinch kosher salt
- 1 pinch black pepper
Instructions
- Start by making the marinade/topping for the fish by whisking together all of the ingredients for the halibut, minus the fish.
- Coat the fish with the mixture and set aside in the refrigerator to marinate while you begin preparing the vegetables.
- Preheat oven to 400°.
- Place the vegetables in a bowl. Drizzle with olive oil. Add the rest of the ingredients for the vegetables and toss to coat.
- Line a baking sheet with parchment paper, aluminum foil, or a silicone baking mat. Coat with nonstick cooking spray if you use aluminum foil. Transfer the vegetables to the baking sheet, leaving a bit of room for the fish in the middle. Bake for 5 minutes.
- Remove the baking sheet from the oven. Place the fish in the middle between the vegetables. Bake for about 25 minutes or until the potatoes are cooked through and the fish is flaky.

Start by making the marinade/topping for the fish by whisking together all of the ingredients in a bowl.

Coat the fish with the mixture and set aside in the refrigerator to marinate while you begin preparing the vegetables (yes, that’s a vintage Pyrex dish). Also preheat the oven to 400.

Place the vegetables in a bowl. Drizzle with olive oil. Add the rest of the ingredients for the vegetables and toss to coat.

Line a baking sheet with parchment paper, aluminum foil, or a silicone baking mat. Coat with nonstick cooking spray if you use aluminum foil. Transfer the vegetables to the baking sheet, leaving a bit of room for the fish in the middle. The potatoes and green beans need to get a bit of a head start in the oven (really, the potatoes). Bake for 5 minutes.

Place the fish in the middle between the vegetables. Bake for about 25 minutes or until the potatoes are cooked through and the fish is flaky.


A great alternative to my usual salmon dinner. The halibut looks wonderful! And adding green beans to the potatoes is just what I love.
You had me at one pan. I love meals like this baked halibut because they don’t make a huge mess in the kitchen but the flavor is still big.
I love sheet pan dinners! This is such a great idea I never would’ve thought of. Thanks!
I just love how simple & easy this dinner recipe is! 🙂
Oh yeah, Dijon and Dill go so well on this fish. We loved it!
The dill/parmesan flavor combination is one of my favorites, but I never thought to pair it with fish. I love that you put this on halibut — it’s so delicate and lean and really carries the herb flavor. I loved it! This will be a weeknight staple in my home.