Crab Brunch Casserole Bake: Easy Brunch Recipe

JC Phelps

Want to really impress your brunch guests? Serving seafood is a sure way to do so – and it couldn’t be easier than my Crab Brunch Casserole Bake! Full of traditional seafood flavor + classic brunch elements, this will be one of your new favorite dishes. The best part? This recipe makes a serving size of 12 — perfect for multiple guests and/or providing seconds!
JCP Eats

Photo Credit: JCP Eats

Crab Brunch Casserole Bake

JC’s note: you can absolutely make this ahead and refrigerate overnight. That said, it will turn out wonderful if you make it the day-of as well. Further, I call for Old Bay Seasoning in this recipe, which has a high salt content. As such, please use kosher salt sparingly in the egg mixture.


  • 8 Large Eggs
  • 3 English Muffins halfed
  • 4 oz Lump Crab Meat drained
  • 1 c Monterey Jack shredded
  • 1 c Parmesan shredded
  • 1 c Gruyere shredded
  • 1 Yellow Pepper diced
  • 1 Red Pepper diced
  • 1 c Half-and-Half
  • 3 tbsp Dijon Mustard
  • 3 tbsp Mayonnaise
  • 1 tbsp Old Bay Seasoning
  • 1/2 Lemon juiced
  • 2 tsp Black Pepper
  • 1 tbsp Minced Onion
  • Red Pepper Flakes to taste
  • Kosher Salt to taste
  • Parsley to garnish


  • Grease a 13×9-in. baking dish and preheat oven to 375F.
  • Mix together mayonnaise and dijon mustard. Split English Muffins in half. Spread mayo/dijon mixture onto the muffins + place them in the greased baking dish. Top with crab, Old Bay, and lemon juice.
  • In a large bowl, whisk together monterey jack, parmesan, gruyere, yellow pepper, red pepper, half-and-half, black pepper, minced onion, red pepper flakes, and kosher salt. Whisk until well-combined. If too thick, add half-and-half a little at a time.
  • Pour egg and cheese mixture over the English Muffins + crab and spread evenly. Top with extra monterey jack.
  • Bake for 35-40 minutes, or until a toothpick comes out clean from the center of the casserole. Let it rest for 5-10 minutes. Garnish with parsley.

Photo Credit: JCP Eats

About Old Bay Seasoning: My Seasoning of Choice for Seafood

Old Bay Seasoning features a blend of celery salt, paprika, black pepper, crushed red pepper, and many more spices. Originally created in Baltimore, Old Bay Seasoning is named after the Old Bay Line, a passenger ship line that plied the waters of the Chesapeake Bay from Baltimore to Norfolk, Virginia, in the early 1900s. The seasoning is regionally popular across Maryland, the Mid-Atlantic States, the Southern States, the Gulf Coast, and parts of New England.

Photo Credit: JCP Eats

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JC Phelps is a Kentucky-based food + southern lifestyle writer.

Louisville, KY

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