Healthy Mustard Crusted Catfish: The No-Mess Oven-Baked Cast Iron Method

Are you looking for a quick, healthy, no-mess dinner recipe? Brad has perfected this Mustard Crusted Catfish by taking it to the oven. You can skip the heavy oil and the deep fryer, but still get that signature crispy crust by baking it on a preheated cast-iron griddle.

The cast iron holds heat better than a standard sheet pan, preventing a soggy bottom and creating a perfect sear. The mustard binder doesn’t just add a tangy kick; it locks in moisture so the fish never dries out. This recipe has been a work in progress, but Brad finally nailed the technique—and you’re going to love how easy it is to pull off!

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(Posts on The Ponds Farmhouse may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases. See the full disclosure details here.)

History of the Mustard-Coated Catfish Recipe

After our favorite restaurant changed hands and took their famous mustard catfish off the menu, Brad spent months on a mission to recreate it. He nailed the tangy flavors early on, but achieving that signature ‘deep-fried’ crunch in an oven was the real challenge. After several soggy sheet-pan attempts and ‘almost-there’ air-fryer attempts, he finally discovered the preheated cast-iron griddle trick. It was the missing piece—perfectly crispy, zesty, and surprisingly low-effort. Here is how you can make this high-protein recipe at home!”

Ingredients for Mustard Crusted Catfish

This recipe is based on two catfish filets, and the amount of each ingredient will vary with more filets.

• 2 Catfish Filets
• Yellow Mustard
• Bread crumbs
• Lemon Pepper seasoning
• Salt
• Pepper
• Lemon
• Olive Oil Spray

Cookware Tools Needed

• Cast Iron Griddle
• Cast Iron Spatulas
• Wax Paper

Low Calorie – High Protein Meal

Another reason we love this recipe is that it is very low in calories but high in protein. Since I’ve needed to increase my protein intake, I’ve been sharing recipes that have helped me regain my strength. You may remember how delicious the Mexican Chicken Casserole and the Thai Peanut Chicken recipes were. If you need to increase your protein intake, this is another healthy recipe you will enjoy.

Prepare Cast Iron Griddle

First, preheat the oven to 400 degrees. Place the cast-iron griddle in the heated oven for approximately 10 minutes until it is hot. While it is heating, you can prepare the catfish.

How To Prepare the Catfish

Place your catfish filets on a piece of wax paper and pat them dry with a paper towel on both sides. You will add the toppings as listed below.

1. Mustard
2. Breadcrumbs
3. Lemon Pepper
4. Salt
5. Pepper

Begin on the back side of the filet. Apply a layer of yellow mustard over the entire side.

Then add a layer of plain bread crumbs and press into the mustard.

Next, sprinkle with a light coating of lemon pepper seasoning, salt, and pepper.

Add Catfish To Cast Iron Griddle

• Remove the cast-iron griddle from the oven, being careful of the HOT surface.
• Spray the surface with the olive oil spray.
• Place the prepared side of the catfish on the griddle. (Note: in the photo, you will notice that we used the grill side of the cast iron, but we found that the smooth griddle side works best.)
• Now repeat steps 1-3 of the catfish preparation on the top side of the catfish filets. (Once again, remember the griddle is HOT, so be careful to only touch the catfish while applying the toppings.
• Squeeze 1/2 of a lemon evenly over the filets.
• Slice the other half of the lemon and place the slices on the filets.

Place the griddle back in the heated oven and cook for 30 minutes. Then turn the oven to broil and cook for 2-3 minutes max. to add more crunch. Keep watch on the fish at this point. They can burn quickly.

Serve Easy Catfish Recipe

Once the catfish is done, transfer it to a plate with a spatula. The catfish filets are a soft fish and are fragile after cooking, so I recommend using a large spatula to easily prevent them from falling apart.

You can replace the cooked lemons with fresh slices to garnish if you wish.

This recipe has a tangy flavor that we feel needs no sauce; you may prefer to serve it with tartar sauce. It’s great with slaw, hushpuppies, or fries.