I usually use tilapia for this. I’m sure you can use cod or mahi mahi or something that will have people judge you less than using tilapia.
What you need
- Fish filets (I usually make around 4)
- 1 large red onion, sliced
- 1 cup grape tomatoes, halved
- 1 lemon, sliced
- 1/4 cup lemon juice
- 5 tbsp melted butter
- 1 tbsp garlic powder
- 1 tbsp chili flakes
- More spices: I use a blend of rosemary, black pepper, ground mustard seed, dried parsley, and oregano.
- Baking dish
- Aluminum foil
Do this
- Preheat oven to 400°F
- Mix melted butter, lemon juice, garlic powder, and chili flakes together
- Line pan with foil
- Spread a layer of sliced onions in the pan
- Season both sides of filets with the spice blend and add to pan
- Place sliced lemons on fish
- Add tomatoes evenly across pan
- Pour butter mixture over everything
- Cover pan with foil
- Cook for approx. 10-15 minutes, until fish flakes when you cut it with a fork
I usually serve this over rice. You can learn how to make rice in an instant pot here: How to Cook Grains in an Instant Pot.