Garlic Herb Baked Flounder with Red Potatoes

This post is sponsored by Morey’s Fine Fish & Seafood. All opinions are 100% mine.

Flavorful garlic herb baked flounder, tender roasted red potatoes and green beans are the perfect trio in this fast and flavorful sheet pan dinner!

Everyone loves a good fish dinner without any of the fuss! Throw everything on one sheet pan and forget about it until you’re ready to dig in.

Garlicky herb marinated flounder fillets are roasted up with a mess of red potatoes and green beans in this keeper dinner that I think you’ll find is appropriate for pretty much any dinner occasion!

We’re talking date night, girls night, meal prepping, the possibilities are endless and so is the amount of times this winner fish dinner is going to be on your menu.

Choosing Your Seafood

We’re taking things up a level in the seafood department thanks to my friends from Morey’s Fine Fish and Seafood! I partnered with them to bring you this delicious dinner featuring their wild flounder that’s marinated in a super flavorful concoction of herbs and garlic that goes so well with the tender red potatoes and green beans.

There are a lot of frozen seafood brands out there, but I can honestly say that Morey’s is a step above the rest for a number of reasons, but especially because of the quality. All of their seafood is premier-quality because it is frozen at the peak of freshness, thus preserving all that wonderful flavor and making it even better than most fresh fish!

Naturally, the best fish needs the best marinades and Morey’s gets super creative and unique in this department! All of their seafood is frozen in bold, flavorful marinades that we highly recommend pouring over the fish before baking for extra flavor.

Not only is Morey’s seafood top-notch, but you can also feel good about enjoying it because of their commitment to sustainability practices by partnering only with responsible and ethical seafood suppliers. I highly encourage you to check out the rest of their story here!

This Baked Flounder features…

• Buttery and tender garlic herb marinated flounder fillets
• Soft and flavorful roasted red potatoes and green beans
• Roasted entirely on one sheet pan in under an hour

Making the Baked Flounder

(scroll down to the bottom of the post for the full recipe)

Ingredients You Will Need

• Red potatoes
• Green beans
• Unsalted butter
• Oregano
• Basil
• Garlic
• Morey’s Wild Flounder Garlic and Herb

Fresh or Frozen Flounder

This recipe will work with either thawed or frozen flounder fillets, however, you will need to adjust the bake time accordingly.

For thawed: follow recipe instructions for cooking flounder fillets for 15-18 minutes.

For frozen: bake flounder separately from red potatoes and green beans 25-29 minutes. The reason you need to cook them separately is because the potatoes and green beans will cook faster than the fish and this avoids overcooking.

Tips for Perfect Baked Flounder

1. Cut potatoes in uniform cubes – we recommend 1-inch cubes for even roasting.
2. Pre-roast potatoes and green beans – these will take longer to cook than the fish so you will need to roast these first until almost tender before adding the fish to sheet pan. If you find the vegetables end up being done before the fish, remove them from the sheet pan and continue baking fish.
3. Thaw flounder in refrigerator – we recommend transferring the flounder from the freezer to the refrigerator the night before you plan to make this dish.
4. Top flounder with excess marinade – use a spoon to scoop up any additional marinade left in the package and top flounder fillets with this for extra flavor.
5. Don’t overcook fish – we recommend using a kitchen thermometer to gauge doneness for fish and specifically shooting for 145F of an internal temperature.

Recipe Variations

Try these ideas for a different twist on this flounder!

• Try different vegetables – try diced zucchini, mushrooms, sweet pepper, carrots, or squash in place of the green beans.
• Use a different potato – yukon golds, russets, or even sweet potatoes would be great in place of the red potatoes.
• Add heat – sprinkle flounder and vegetables with red pepper flakes or your favorite hot sauce for a spicy kick.

Serving Suggestions

This flounder is perfect for date nights at home, girls nights, or even just for meal prepping for the week! It’s easy enough that you don’t need to plan much in advance and fits pretty much any occasion.

We love serving this flounder with some toasted French bread on the side and a good white wine like pinot grigio or sauvignon blanc.

With how simple this sheet pan dinner is to make and the small ingredient list, it’s almost unreal how much flavor we’re packing inside! The garlicky herbed flounder fillets bake up so buttery-tender and pair like a dream with the tender roasted red potatoes and green beans.

Weeknight sheet pan dinner of absolute champs!

Save this recipe using the ‘save to recipe box’ button below. If you make it, please let us know! Leave a comment + star rating below, or take a photo and tag it on Instagram with #wholeandheavenlyoven.

Watch this flounder made step-by-step on Google web stories.

More seafood recipes to try next!

• Greek Grilled Salmon Kabobs
• Blackened Salmon Taco Bowls
• Spicy Tuna Poke Bowls