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3.79 from 37 votes

Loaded Cauliflower Casserole

Prep Time15 mins
Cook Time20 mins
Total Time35 mins
Course: Side Dish
Cuisine: American
Keyword: casserole, cauliflower
Servings: 6
Calories: 453kcal
Author: Christina Hitchcock


  • 6 cups cauliflower florets
  • 6-8 strips bacon - cooked and crumbled
  • 6 tablespoons green onions - chopped
  • 1/2 cup mayonnaise
  • 1/2 cup sour cream
  • 1 cup Colby cheese - shredded
  • 1 cup cheddar cheese - shredded
  • 8 oz mushrooms - sliced (optional)
  • 2 teaspoons House Seasoning blend


  • Preheat oven to 425 degrees F.
  • Boil cauliflower for 8-10 minutes or until fork tender; drain.
  • In a large bowl, combine mayonnaise, sour cream, half of the bacon, 3 tablespoons green onions, 1/2 cup colby cheese, 1/2 cup cheese cheese, House Seasoning blend and cauliflower.
  • Pour into 13x9 baking dish and top with remaining bacon, green onions and cheeses.
  • Bake for 15-20 minutes or until cheese melts.
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Add more Vegetables : Add some brussel sprouts, broccoli or peppers to the dish.
This Recipe Can be Doubled: This is a great recipe for a crowd. Simply increase the ingredients proportionately and split it into two baking dishes before baking.
Try More Meat: Leftover ham, turkey or chicken can really up the protein and make this a complete meal.
Did You Make This Recipe?Show me on Instagram! Mention @itsakeeperblog or tag #itisakeeper! I'd love to see what you're up to in the kitchen!
Helpful Tips for All Recipes
  • When a recipe call for House Seasoning Blend, you can find the recipe on www.itisakeeper.com. Simply search for "House Seasoning Blend" or you can substitute salt and pepper to taste.  
  • I always use unsalted butter in my recipes.
  • I always use a meat thermometor to test for doneness when cooking meat.
  • When a recipe is made in the oven, it should be pre-heated to the temperature in the recipe, unless otherwise noted.