How Long To Bake Salmon And Broccoli

Baking salmon and broccoli together takes about 12 to 15 minutes in a 400°F (200°C) oven when your salmon fillets are around 1 inch thick and your broccoli florets are cut into bite-sized pieces.
 
That’s the short answer to how long to bake salmon and broccoli, and honestly it’s one of the easiest weeknight dinners you can throw together.
 
The salmon comes out flaky and tender while the broccoli gets lightly roasted with crispy edges.
 
But there are a few variables that can shift that bake time, and I’ll walk you through all of them so your sheet pan dinner comes out perfect every single time.
 
In this post, we’ll cover exactly how long to bake salmon and broccoli, how to prep both ingredients so they finish cooking at the same time, and the mistakes that can ruin an otherwise simple meal.
 
Let’s get into it.
 

How Long to Bake Salmon and Broccoli

So, how long to bake salmon and broccoli?
 
At 400°F, salmon and broccoli bake together in roughly 12 to 15 minutes.
 
Here’s how that timing breaks down depending on your setup:
 

1. The Standard 400°F Oven

When you bake salmon and broccoli on a single sheet pan at 400°F, most 1-inch salmon fillets need 12 to 15 minutes total.
 
Broccoli florets of similar size roast in about the same window, which is why this pairing works so well.
 
If your fillets are thinner, closer to half an inch, expect the salmon to bake in 9 to 11 minutes.
 

2. Thicker Fillets Need More Time

If you’re baking salmon and broccoli with thick fillets (1.5 inches or more), give the salmon a head start.
 
Roast the broccoli alone for 5 minutes first, then add the salmon to the pan.
 
That way, the total bake time for salmon and broccoli stays around 18 to 20 minutes and nothing overcooks.
 

3. Lower Temperatures Mean Longer Baking

You can bake salmon and broccoli at 350°F if you prefer a gentler cook, but plan for 20 to 25 minutes.
 
The trade-off is less char on the broccoli, but the salmon stays extra moist.
 
Either way, the question of how long to bake salmon and broccoli always depends on your oven temperature, so pick one and stick with it.
 

How to Prep Salmon and Broccoli So They Finish Together

Getting the timing right starts before the oven even preheats.
 
Here’s how to prep so your salmon and broccoli bake evenly:
 

1. Cut Broccoli Into Uniform Florets

Aim for florets that are all roughly the same size, about 1 to 1.5 inches.
 
Uneven pieces mean some florets burn while others stay raw, and that throws off your bake time for salmon and broccoli completely.
 

2. Pat the Salmon Dry

Moisture is the enemy of a good roast.
 
Pat your salmon fillets dry with paper towels before seasoning so the surface can caramelize instead of steaming.
 

3. Toss Broccoli in Oil, Not the Salmon

Coat the broccoli generously in olive oil and seasonings, but keep the salmon lightly oiled.
 
Salmon releases its own fat as it bakes, so it doesn’t need much.
 

4. Give Broccoli a Head Start If Needed

If your broccoli pieces are on the larger side, roast them for 5 minutes before adding the salmon.
 
This little trick keeps your how long to bake salmon and broccoli timeline consistent no matter the size of your florets.
 

Signs Your Salmon and Broccoli Are Done

Rather than watching the clock, watch for these doneness cues:
 

1. Salmon Flakes Easily

When your salmon is done baking, it should flake apart with a fork and look opaque all the way through.
 
The internal temperature should hit 145°F at the thickest part.
 

2. Broccoli Is Tender-Crisp

Perfectly baked broccoli is tender but still has a slight bite, with browned tips and a bright green color.
 
If it’s gone dull and limp, you’ve baked it too long.
 

3. No Translucent Centers

Raw salmon looks translucent in the middle, so if you see that, it needs a few more minutes.
 
Knowing how long to bake salmon and broccoli is helpful, but trusting your eyes and a thermometer is even better.
 

Mistakes to Avoid When Baking Salmon and Broccoli

Even simple recipes go wrong when you skip the basics.
 
Here’s what to watch out for:
 

1. Crowding the Pan

If your salmon and broccoli are piled on top of each other, they’ll steam instead of roast.
 
Use a large sheet pan and leave a little space between pieces.
 

2. Skipping the Preheated Oven

Always preheat fully.
 
A cold oven stretches your bake time for salmon and broccoli and gives you uneven results.
 

3. Not Checking Early

Ovens run hot or cold, so start checking at the 10-minute mark.
 
When it comes to how long to bake salmon and broccoli, a minute or two can be the difference between perfect and overdone.
 

So, How Long to Bake Salmon and Broccoli?

Salmon and broccoli bake together in about 12 to 15 minutes at 400°F when your fillets are 1 inch thick.
 
Thicker fillets or lower oven temperatures will push that time up, so adjust accordingly.
 
Prep both ingredients evenly, give the broccoli a head start when needed, and check for doneness rather than relying only on the clock.
 
Now that you know exactly how long to bake salmon and broccoli, this easy sheet pan dinner can become a regular in your weekly rotation.