Fish on Friday … Potato Crusted Tilapia

During Lent, I am always looking for easy, after school dinners to satisfy our fish-on-Friday requirements. This recipe is SO easy. Ridiculously easy. Chances are good that you even have most of these ingredients on hand to make this dinner tonight…

For Potato Crusted Tilapia, you only need 4 ingredients – including the fish (any thin white fish filets will work). Fish, mustard, mayonnaise, instant mashed potato flakes. Presto. Dinner.

Potato Crusted Tilapia


1 lb tilapia filets (about 6 to 8 total)
A few tablespoons of your favorite mustard (I love our local Saucy Lady’s Spicy Mustard)
A few tablespoons mayonnaise
Instant mashed potato flakes (I use Bob’s Red Mill)
Salt & pepper


1. Grease a baking dish and set aside.

2. Combine mayonnaise and mustard on one plate and generously sprinkle potato flakes on another plate. I have been using the most amazing

3. Lightly salt and pepper both sides of your tilapia filets.

4. Coat the tilapia evenly (messily) with the mayo/mustard combination and then dredge both sides in the potato flakes. Place in the greased baking dish.

5. Repeat until all the filets are coated in the mayo/mustard and potato flakes. I like to lightly season all of the filets with a bit of freshly ground salt and pepper – seasoned salt works well, too!

6. Bake at 425 degrees for about 20 to 25 minutes until the fish is cooked through.

Potato Crusted Tilapia … Bake for 25 minutes at 425 degrees

 A few notes … 

** I like to cook my fish in the top half of the oven so the potato flakes get a little bit crispy. Serve with your favorite green salad! Enjoy!   

** This is a quick but messy meal to prepare – if your fingers aren’t covered in potato flakes and mayonnaise and mustard, then you are probably doing something wrong…

** 1 pound of tilapia served 2 adults and 4 children – 4 small but hungry children. If you have some big eaters in your house, you might want to buy a bit more fish and cook your filets on a foil-lined cookie pan.

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Erin Brighton

I am a native New Englander now living in beautiful Charlotte, North Carolina and enjoying summers in sea-breezy Scituate, Massachusetts with my five small kids and two large dogs. I love to cook easy, local, and gluten-free for friends and family.

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