Favorite Weeknight Side Dish: Easy, Cheesy Broccoli Cauliflower Casserole Recipe

If you are looking for the healthiest veggie side, THIS IS NOT IT. Leave now; you’re better off sticking to roasted broccoli or grilled asparagus. Consider yourself warned 😉 But, if you are looking for a ridiculously delicious weeknight dinner side that incorporates veggies and will without a doubt be a crowd pleaser, you have come to the right place! You will definitely want to pin/print/save/bookmark this favorite weeknight side dish: easy Cheesy Broccoli Cauliflower Casserole recipe.

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Favorite Casserole Side Dish- Cheesy Broccoli Cauliflower Casserole

In the south, everything is better in casserole form. Anyone else grow up in a small Baptist church? You better believe that casseroles were king- chicken casserole, corn casserole, hashbrown casserole… my favorite was always broccoli casserole. Dave, on the other hand, grew up in south Texas. His casseroles were called “enchiladas” ;). He has since adapted to our Georgia-livin’ lifestyle and we now have the best of both worlds- he whips up the most incredible Mexican feasts while I deliver aaaallll the casseroles.

The night before we left to head to South Carolina, I fought off the temptation of ordering takeout; as much as I didn’t feel like cooking, I also didn’t want to waste any produce in the fridge. I took inventory, checked the pantry and in an effort to “use up” the half heads of broccoli and cauliflower, decided to take my standard broccoli casserole a step further. And, it was amazing. After our trip, we came home, finished the leftovers, and I turned around and immediately made two more broccoli cauliflower casseroles- one for neighbors and a second for us.

Easy Favorite Broccoli Cauliflower Casserole Recipe with Ritz Crackers


It takes very little prep time, most of it dedicated to pre-cooking the veggies. After making this the first time, you can decide how generous you want to be with the cheese and crackers. We like ours cheesy and with lots of topping 😉

Favorite Casserole Side Dish- Cheesy Broccoli Cauliflower Casserole
5 from 2 votes

Cheesy Broccoli Cauliflower Casserole

A favorite weeknight dinner side dish for the entire family - easy, Cheesy Broccoli Cauliflower Casserole (kid approved!)

Course Side Dish
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes


  • 1/2 head broccoli (large sized)
  • 1/2 head cauliflower (large sized)
  • 1/2 can cream of mushroom soup
  • 1/2 cup mayonnaise (light is fine)
  • 2 cups shredded sharp cheddar cheese
  • 1 egg
  • 1 sleeve Ritz crackers
  • 2 Tbsp butter
  • salt (to taste)
  • pepper (to taste)


  1. Preheat oven to 350º

  2. Rinse broccoli and cauliflower and chop into small pieces. Add to a pot of water and boil until tender. When cooked through, drain in colander and set aside.

  3. Coat casserole dish with non-stick cooking spray

  4. Break the egg in a large mixing bowl, and lightly scramble 

  5. Add cream of mushroom soup and mayonnaise to the egg and mix together well.

  6. Add cheese to the bowl and mix well.

  7. Add cooked broccoli and cauliflower to the bowl and mix well. Add a pinch of salt and pepper, to taste.

  8. Pour mixture into greased casserole dish and spread evenly.

  9. Crush Ritz crackers and add as the casserole topping, distributing the crumbles evenly.

  10. In a microwave-safe dish, add butter and heat for 30 seconds, or until melted. Drizzle crackers with the melted butter.

  11. Bake for 30-35 minutes.


What do you do with the other halves of the unused broccoli and cauliflower crowns that don’t make it into the broccoli cauliflower casserole? Roast them as a side on a different night, later that week. You instantly have two dinner sides for the week that you don’t have to think about. Here’s how I roast my broccoli and cauliflower: pre-heat oven to 400 degrees, rinse and chop veggies, and lay them on a baking sheet. Drizzle with olive oil, sprinkle with red pepper flakes, salt, and two cloves garlic. I use a basting brush to stir and coat thoroughly. Bake for 15-20 minutes until edges are brown and veggies are tender.

Family Weeknight Side Dish- Easy Favorite Broccoli Cauliflower Casserole Recipe with Cream of Mushroom Soup


If you make this cheesy broccoli cauliflower casserole this week, let me know your thoughts! Have a SAFE and happy total eclipse Monday.

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  1. 8.20.17
    Gretchen Thomas (Nan) said:

    Love the two for one recipes! Why have I never done this casserole???

    • 8.23.17

      Nan, you MUST!!! I will make it for sure when you visit 😉

  2. 9.3.17
    Brandy said:

    5 stars
    Made this the other night and it was a huge hit! Another delicious recipe Kelley!

    • 9.5.17

      Yay! Brandy, I am so glad. It is a fav side here, too 😉

  3. 1.4.18
    Darla A Johnson said:

    5 stars
    KelleyNan made this for one of our big family gatherings and we are still raving about it! It was absolutely mouth watering delicious and by far the best veggie casserole we have ever had. I was the lucky one to have what was left the next day since she made two huge trays and savored every last bite! Can’t wait to make this a holiday and great side for any dinner. We are so very blessed and lucky to have this amazingly gifted designer and chef in our family. Love all you do and are! Darlita

    • 1.8.18

      Darla, you are too generous! I hope you will love making this easy side for years to come. xoxo