When it comes to easy dinners, it’s hard to beat a tray bake.
When it comes to easy seafood dinners, it’s even harder.
Many people enjoy eating fish but avoid cooking it at home because it feels complicated, expensive, or slightly intimidating.
Fortunately, barramundi couldn’t be easier.
This Lemon Herb Barramundi, Potato & Green Bean Tray Bake combines flaky white fish, crispy roasted potatoes, fresh green beans, garlic, lemon, and herbs into a complete meal that cooks almost entirely on one tray.
It’s fresh, comforting, healthy, and perfectly suited to cooler evenings when you want something nourishing without spending an hour in the kitchen.
Best of all, it’s portioned for one person.
No leftover fish lingering in the fridge.
No oversized family recipes.
Just a simple, delicious dinner that works.
Why You’ll Love This Tray Bake
- One tray means minimal washing up
- High in protein
- Rich in omega-3 fats
- Uses common supermarket ingredients
- Perfect for beginner cooks
- Fresh winter flavours
- Ready in around 40 minutes
Ingredients
For the Barramundi
- 1 barramundi fillet (180–200g)
- 1 teaspoon olive oil
- 1 garlic clove, minced
- Zest of ½ lemon
- 1 teaspoon lemon juice
- ½ teaspoon dried parsley
- Few cracks black pepper
For the Vegetables
- 200g baby potatoes, halved
- 100g green beans, trimmed
- ½ small red onion, cut into wedges
- 1 teaspoon olive oil
- Pinch salt
- Few cracks black pepper
To Finish
- Lemon wedges
- Fresh parsley (optional)
Optional Add-Ons
Try adding:
- asparagus
- broccoli
- cherry tomatoes
- zucchini
- capers
- olives
- baby spinach
This recipe adapts beautifully to whatever vegetables need using up.
Equipment
- Small baking tray
- Baking paper
- Knife and chopping board
- Small mixing bowl
Step-by-Step Instructions
Step 1: Preheat the Oven
Preheat your oven to:
200°C fan-forced
Line a baking tray with baking paper.
Step 2: Start the Potatoes
Place the potatoes and onion onto the tray.
Drizzle with olive oil.
Season with:
- salt
- black pepper
Toss well.
Roast for:
20 minutes
Step 3: Prepare the Barramundi
In a small bowl combine:
- olive oil
- garlic
- lemon zest
- lemon juice
- parsley
- black pepper
Brush over the barramundi fillet.
Set aside.
Step 4: Add Fish & Beans
Remove the tray from the oven.
Add:
- barramundi
- green beans
Return to the oven.
Bake for:
12–15 minutes
Or until:
- the fish flakes easily with a fork
- the potatoes are golden
- the beans are tender
For food safety, fish should reach an internal temperature of 63°C.
Step 5: Finish & Serve
Remove from the oven.
Squeeze fresh lemon over the fish.
Scatter with parsley if using.
Serve immediately.
Serving Suggestions
This tray bake is a complete meal on its own, but also pairs beautifully with:
- rocket salad
- steamed greens
- Greek yoghurt with herbs
- crusty wholegrain bread
Or simply enjoy it straight from the tray while appreciating how little cleanup awaits.
Nutritional Highlights
Barramundi
Provides:
- lean protein
- omega-3 fatty acids
- selenium
- vitamin B12
Making it one of Australia’s healthiest seafood choices.
Potatoes
Provide:
- potassium
- vitamin C
- fibre
- slow-release carbohydrates
Perfect for sustaining energy during colder months.
Green Beans
Rich in:
- fibre
- folate
- vitamin C
Adding freshness and colour to the meal.
Easy Swaps
Use Another Fish
Try:
- snapper
- hoki
- flathead
- salmon
Adjust cooking times as required.
Lower-Carb Option
Replace potatoes with:
- cauliflower
- broccoli
- extra green beans
Dairy-Free
The recipe is naturally dairy-free.
Extra Protein
Add a handful of chickpeas to the tray before roasting.
Storage & Reheating
Refrigerator
Store leftovers in an airtight container for up to:
2 days
Reheating
Reheat gently in the microwave or oven.
Seafood is best enjoyed fresh but can be reheated carefully.
Approximate Cost Per Serve (Australia)
Approximately:
$7.50–$11.00 AUD
Depending on barramundi prices and seasonal produce.
Perfect Pairings From Plan4One
This tray bake pairs beautifully with:
- winter vegetable soups
- Mediterranean salads
- healthy seafood meal plans
- anti-inflammatory eating plans
Final Thoughts
This Lemon Herb Barramundi, Potato & Green Bean Tray Bake proves that seafood dinners don’t need to be complicated to be impressive.
The combination of flaky fish, crispy potatoes, bright lemon, and fresh green beans creates a meal that’s comforting enough for winter while still feeling light and fresh.
It’s simple, nutritious, and exactly the sort of recipe that makes cooking for one feel less like a chore and more like a treat.
Enjoyed this recipe?
Save it for your next seafood night, share it with another solo eater, and keep building your collection of easy one-tray dinners.
Because good food and fewer dishes is always a winning combination.
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