Broccoli Cheddar Gratin with Crispy Onions

Classic broccoli and cheddar casserole with a topping of crushed croutons and crispy fried onions. Impressive for holidays and easy enough for weeknight meals!

Broccoli Cheddar Gratin with Crispy Onions – Classic, easy broccoli and cheddar casserole topped with crushed croutons and crispy fried onions. Thecomfortofcooking.com

Though I wasn’t devoutly religious growing up, we always celebrated Easter with great anticipation. Every year, I laid the silverware and layered the scalloped potatoes, helping my mom put on a great feast for anyone who would join us at the table. Since our extended family lived far away and we often visited them, this was the time of year they sometimes came to us. When they weren’t able to, it was friends who were as close as family feasting with us. Either way, it was a great excuse to cook up an easy yet elegant Easter dinner!

The glazed ham may be the main event of most meals, but I really look forward to the scrumptious sides! My spring side dishes are simply seasoned but bursting with comforting, melt-in-your-mouth flavor. Just how we like them. And just like this oh-so-good broccoli gratin with gooey cheddar, nutmeg and crispy fried onions.

There’s green in there, so it’s healthy. Just go with it.

Broccoli Cheddar Gratin with Crispy Onions – Classic, easy broccoli and cheddar casserole topped with crushed croutons and crispy fried onions. Thecomfortofcooking.com
Broccoli Cheddar Gratin with Crispy Onions – Classic, easy broccoli and cheddar casserole topped with crushed croutons and crispy fried onions. Thecomfortofcooking.com

If you’ve never had a broccoli gratin, you’re in a for a real treat. Picture a marriage between mac and cheese and scalloped potatoes, then replace the carbs with broccoli, and you’ve got a gorgeously golden, mouthwatering veggie gratin! You can even add half broccoli, half cauliflower if you’d like.

I simply steam my broccoli, make a cheese sauce seasoned with McCormick onion powder, garlic powder and earthy ground nutmeg. I place the broccoli in a greased dish, pour the sauce over top, and sprinkle on crumbly croutons and crisp onion strings.

Serve this scrumptious broccoli and cheese casserole on the side of your weeknight meals or special holiday dinners!

Broccoli Cheddar Gratin with Crispy Onions – Classic, easy broccoli and cheddar casserole topped with crushed croutons and crispy fried onions. Thecomfortofcooking.com

Broccoli Cheddar Gratin with Crispy Onions – Classic, easy broccoli and cheddar casserole topped with crushed croutons and crispy fried onions. Thecomfortofcooking.com

Broccoli Cheddar Gratin with Crispy Onions

Broccoli Cheddar Gratin with Crispy Onions

Yield: Makes 4 to 6 side dish servings

Ingredients

  • 2 pounds (32 oz.) broccoli florets, fresh or frozen
  • 3 Tablespoons unsalted butter
  • 3 Tablespoons all-purpose flour
  • 1 1/2 cups whole milk
  • 1 teaspoon sea salt
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1/8 teaspoon ground nutmeg
  • 2 cups (8 oz.) grated sharp cheddar
  • 1/2 cup French fried onions
  • 1/2 cup crumbled croutons

Instructions

  1. Generously grease an 8 x 8-inch baking dish. Preheat oven to 375 degrees F.
  2. Steam broccoli until crisp-tender, 5 minutes from fresh; 10 minutes from frozen. Add to prepared dish; set aside.
  3. In a medium saucepan set to medium heat, melt butter. Whisk in flour and cook, stirring, for 1 minute. Add milk, salt, garlic powder, onion powder and nutmeg. Bring to a boil while whisking constantly. Reduce heat and simmer, stirring occasionally, until sauce is thickened, about 5 minutes. Remove from heat and stir in cheddar.
  4. Pour sauce evenly over broccoli. Sprinkle with French fried onions and crumbled croutons.
  5. Bake until lightly browned and bubbly, about 30 minutes. Tent with foil if browning too quickly. Serve hot.
  6. Enjoy!

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Join the Conversation

  1. 5 stars
    I’ve never tried a broccoli casserole before, since broccoli isn’t one of my favorite veggies, but I have to admit this casserole looks super scrumptious, especially with those added crispy onion strings and crushed croutons on top. Mmmmhh, I guess I’ll have to give broccoli a second chance :)

    xo, Elisa

  2. This looks absolutely delicious! I so get being more excited for the sides than the “main event”!

  3. 5 stars
    Holy cow, I’m about to have a religious experience just looking at that gorgeous casserole!!

  4. 5 stars
    I was sooo happy to receive this recipe in my in-box, as I’ve (already) been planning my Easter dinner menu. This will definitely be one of the 3 side-dishes which I plan to make, along with my family’s traditional Easter meal…. which consists of Ham, Kielbasa (a Polish Sausage), and also a decadent dessert. Fortunately, we (and our guests) all love Broccoli, so this dish will definitely be a winner on our Easter table. Thanks for your delicious recipes.

  5. This is a great veggie side for the Easter feast! Have a wonderful holiday, Georgia :)

  6. I was just reading a cookbook “comfort meals”, and you came to my mind. Georgia, this looks just perfect. My kids would go nuts over it. YUMMy clicks!

  7. Could I make this ahead and put in the refrigerator the night before? I would add the onions and croutons right before I put it in the oven.
    Thanks!

    Kim

  8. Yes, that should work fine!

  9. Thank you for your quick reply!

  10. Hi
    Did you make your own fried onions and croutons.

  11. For this recipe, I just used French’s canned fried onions and store bought croutons, but you can certainly make your own if you prefer!

  12. Hi Georgia, how many servings would this be?

  13. This makes 4 to 6 side dish servings

  14. 2lbs was too much broccoli for me. The sauce didn’t evenly coat it and it all didn’t fit in an 8×8 pan. Next time I’d do 1lb broccoli!

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