Baked Flounder Fillets with Herb-Lime Butter Sauce and Vegetables

Prep: 20 minCook: 1 hrmediumAmerican
Baked Flounder Fillets with Herb-Lime Butter Sauce and Vegetables

Tender baked flounder fillets are enhanced with a rich herb-lime butter sauce featuring shallots, jalapeño, and fresh herbs. The fish is first soaked in lemon juice for optimal flavor, then baked to perfection and served over crispy julienned zucchini or asparagus. This elegant dish combines the delicate taste of flounder with a vibrant, aromatic sauce that includes white wine, coconut cream, and lime juice. Perfect for a special dinner or when you want to impress guests with a restaurant-quality seafood dish that's surprisingly simple to prepare at home.

Ingredients

  • 4 flounder fillets, cut in half (total 1.5 pounds/680 grams)
    cod, sole, or tilapia1:1fishadds fish

    similar texture

  • ½ cup lemon juice
  • ¼ cup olive oil, plus more for greasing
  • 2 teaspoons chili-lime spice
  • ½ cup vegan butter or margarine
    regular butter1:1dairyadds dairy

    richer flavor

    Full guide →
  • 2 shallots, very finely diced
  • 1 jalapeño, very finely diced
  • 6 cubes frozen garlic
  • 10 cubes frozen cilantro or parsley
  • cup white cooking wine
  • 1 cup hot water with parve chicken bouillon
  • ¼ cup coconut cream
  • juice from 1 lime
  • ½ teaspoon pepper
  • 7 fancy zucchini, julienned
    asparagus2 bunches asparagus for 7 zucchinivegetable

    different texture

    Full guide →
  • 1 lime, sliced
  • fresh herbs

Instructions

  1. 1

    Fill a large bowl or baking pan with cold water and add lemon juice

  2. 2

    Soak fish fillets in the lemon water for 15 minutes

  3. 3

    Preheat oven to 350 degrees Fahrenheit

  4. 4

    Line a baking sheet with parchment paper and brush with olive oil

  5. 5

    Remove fish from water, pat dry, and place on baking sheet

  6. 6

    Brush each fillet with olive oil and sprinkle with chili-lime spice

  7. 7

    Bake for 15-20 minutes

  8. 8

    Melt vegan butter in a saucepan

  9. 9

    Add shallots and sauté until golden

  10. 10

    Add jalapeño and sauté for 2 minutes, stirring constantly

  11. 11

    Add garlic and sauté for 2 minutes

  12. 12

    Add wine, hot bouillon water, coconut cream, lime juice, and pepper

  13. 13

    Bring sauce to a boil, then reduce heat and simmer for 10-15 minutes until thickened

  14. 14

    Remove sauce from pan

  15. 15

    In the same pan, sauté julienned zucchini or asparagus for 3-5 minutes

  16. 16

    Add 1 tablespoon sauce to vegetables and mix

  17. 17

    Place vegetables in center of plate and drizzle with sauce

  18. 18

    Top with flounder fillet

  19. 19

    Drizzle fish with sauce and garnish with lime slices and fresh herbs

Tips

Tip 1

Soaking the fish in lemon water helps remove any fishy odor and adds brightness to the flavor

Tip 2

Keep the vegetables slightly crisp by not overcooking them - they should retain some texture

Tip 3

Make sure to pat the fish completely dry before baking to ensure proper browning

Good to Know

Storage

Refrigerate cooked fish and sauce separately for up to 2 days

Make Ahead

Sauce can be made 1 day ahead and reheated gently before serving

Serve With

Serve immediately while fish is hot and vegetables are crisp

Common Mistakes

Watch

Don't skip soaking the fish to avoid fishy taste

Watch

Don't overcook vegetables to maintain crispness

Watch

Don't wash the pan between sauce and vegetables to retain flavor

Substitutions

Dairy-Free Swaps

vegan butter
regular butter1:1dairyadds dairy

richer flavor

Full guide →

General Alternatives

flounder
cod, sole, or tilapia1:1fishadds fish

similar texture

zucchini
asparagus2 bunches asparagus for 7 zucchinivegetable

different texture

Full guide →
white wine
chicken broth1:1alcohol-free

less complex flavor

Full guide →
Find more substitutions →

FAQ

Can I use frozen flounder fillets?

Yes, but thaw completely and pat very dry before soaking in lemon water to remove excess moisture.

What if I don't have vegan butter?

Regular butter or margarine works fine, or use olive oil though the sauce will be lighter in texture.

How long will leftovers keep?

Store fish and sauce separately in the refrigerator for up to 2 days and reheat gently to avoid overcooking.