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This super simple cauliflower and potato bake is a great prep-ahead recipe that pairs well with just about anything. A cheesy sauce, seasoned with mustard, onion, and garlic, coats cooked cauliflower and potatoes. It makes a wonderful side dish for St. Patrick’s Day, Easter, Thanksgiving, Christmas, or a weeknight meal with the family.
Reader note: This post was originally published in March 2021. It was updated with new photos and some ingredient changes in November 2023.
I’m really crushing on this cauliflower and potato bake. It’s so easy and although it’s not groundbreaking in any way, there’s something about the simplicity of a veggie casserole that never disappoints.