Cooking Techniques
PanPotPlates
Pescatarian Sheet Pan Mahi Mahi with Garlic Lemon Green Beans
By PanPotPlates Test KitchenReviewed by PanPotPlates Editorial TeamPublished Apr 25, 2026 · Updated May 12, 2026
Mediterranean-Inspired
25 mins
sheetpanonepanpescatarianquickeasyhealthyfamily-friendlyglutenfreedairyfreelighttimessaver
Enjoy a Mediterranean-inspired, healthy pescatarian meal with this quick and easy sheet pan dinner. Tender mahi mahi fillets roast perfectly alongside crisp green beans tossed in a zesty garlic lemon sauce. Ideal for family-friendly weeknights, this light, gluten-free, and dairy-free recipe delivers maximum flavor with minimal cleanup.
Prep
10 min
Cook
15 min
Total
25 min
Servings
4
Difficulty
easy
Cuisine
Mediterranean-Inspired
Ingredients
Servings
4
- 4 mahi mahi fillets (about 6 ounces each), skin removed
- 1 pound fresh green beans, trimmed
- 3 tablespoons olive oil, divided
- 3 cloves garlic, minced
- 1 lemon, zested and juiced
- 1 teaspoon dried oregano
- 1/2 teaspoon smoked paprika
- Salt and freshly ground black pepper, to taste
- 1/4 teaspoon crushed red pepper flakes (optional)
- Fresh parsley, chopped (for garnish)
Instructions
-
Preheat oven to 425°F (220°C). Line a large rimmed sheet pan with parchment paper or lightly grease it.
-
In a large bowl, toss trimmed green beans with 1 1/2 tablespoons olive oil, half the minced garlic, half the lemon zest, salt, pepper, and crushed red pepper flakes if using until evenly coated.
-
Spread the green beans in a single layer on one side of the sheet pan.
-
In the same bowl, add mahi mahi fillets and drizzle with remaining 1 1/2 tablespoons olive oil, remaining minced garlic, lemon juice, remaining lemon zest, dried oregano, smoked paprika, salt, and pepper; toss gently to coat evenly.
-
Arrange mahi mahi fillets on the empty side of the sheet pan.
-
Roast for 12-15 minutes, until mahi mahi is opaque and flakes easily and green beans are tender-crisp.
-
Remove from oven and sprinkle chopped fresh parsley over the dish.
-
Serve immediately, drizzling any pan juices over the fish and green beans.
Tips
Pan Or Pot Required
For the best results with this vibrant, healthy Sheet Pan Dinner , use a large rimmed sheet pan to roast mahi mahi and garlic lemon green beans evenly.
Cookware Size Guidance
Use a large rimmed baking sheet (at least 15x10 inches) for this Sheet Pan Dinner to provide enough space for mahi mahi fillets and green beans.
Cookware Swap Guidance
an Dinner , here are alternative cookware options that preserve the ease and quality of the recipe: Large Baking Dish or Casserole Pan: Use a shallow glass or ceramic dish to arrange fish and vegetables in a single layer.
Leftovers Quality
Reheat gently and add a splash of liquid when needed to keep the texture moist and tender.
Frequently Asked Questions
- Can I make Pescatarian Sheet Pan Mahi Mahi with Garlic Lemon Green Beans ahead?
- Yes. Prep the ingredients or cook the full dish ahead, then reheat gently so the texture stays close to freshly made.
- What cookware works best?
- Use a rimmed sheet pan and avoid crowding so the recipe cooks evenly.
- How do I know it is done?
- Follow the recipe timing, then check the main ingredient for tenderness, bubbling, browning, or safe doneness before serving.
- Can I adjust the seasoning?
- Yes. Taste near the end and adjust salt, acid, herbs, or heat in small amounts.
Customize this easy and healthy sheet pan dinner while keeping it pescatarian and family-friendly by trying these ingredient substitutions based on your preferences or availability:
- Mahi Mahi Fillets: Substitute with firm white fish like cod, halibut, or tilapia for similar texture and mild flavor.
- Fresh Green Beans: Swap with asparagus, broccolini, or snap peas for seasonal variation with crisp texture.
- Olive Oil: Use avocado or grapeseed oils, which offer a neutral flavor and high smoke point.
- Garlic: Garlic powder can replace fresh minced garlic if needed, though fresh yields best aroma.
- Lemon: Lime juice and zest provide a bright citrus alternative.
- Dried Oregano: Substitute with dried thyme, basil, or Italian herb blends for varied herbal notes.
- Smoked Paprika: Replace with regular paprika or chili powder for mild heat and color.
- Fresh Parsley: Fresh cilantro or basil leaves also add a fresh, vibrant finish.
These swaps maintain the dish’s light, healthy, gluten-free, and dairy-free qualities, making it perfect for quick weeknight meals with minimal cleanup.
Storage and Reheating
Cool Pescatarian Sheet Pan Mahi Mahi with Garlic Lemon Green Beans before storing. Refrigerate leftovers in an airtight container for up to 4 days.
Freeze portions for longer storage when the ingredients are freezer-friendly. Reheat gently with a splash of liquid if the dish looks dry.
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