Mixed Vegetable Casserole will be your family’s new favorite side dish recipe. Even those who aren’t fans of vegetables love this casserole!
I love Thanksgiving! It’s really probably a close tie with Christmas for me. All of the delicious food, I’m just imagining the spread right now. But it’s more than the food, I love spending time with family and taking time to remember all of our blessings.
We always have a lot of choices at Thanksgiving and this Mixed Vegetable Casserole is a staple for our Thanksgiving. My mother-in-law has even started making it on the years that we spend Thanksgiving with them. Even those who don’t like vegetables love this casserole so try it out for your family this year!
Ingredients:
– 1 large package frozen mixed vegetables
– 1 cup grated cheddar cheese
– 1 cup mayonnaise
– 1 cup chopped celery
– 1 medium onion, chopped
– 1 stick margarine
– 1 tube crushed Ritz crackers or you can use Cheez-its
Directions:
1. Cook vegetables according to package directions, until just tender
2. Drain vegetables and mix with cheese, mayo, celery, and onion
3. Put into greased casserole dish
4. Melt margarine and mix in crackers or Cheez-its
5. Put cracker crumb mixture on top
6. Bake at 350 for 30 minutes
This is a simple and delicious vegetable dish that we always have at Thanksgiving. I like doing the Cheez-it’s on top because it adds a little extra flavor to this casserole.

Mixed Vegetable Casserole
Mixed Vegetable Casserole will be your family’s new favorite side dish recipe. Even those who aren’t fans of vegetables love this casserole!
Ingredients
- 1 large package frozen mixed vegetables
- 1 cup grated cheddar cheese
- 1 cup mayonnaise
- 1 cup chopped celery
- 1 medium onion, chopped
- 1 stick margarine or butter
- 1 cup ritz crackers or Cheez-it's crushed
Instructions
Cook vegetables according to package directions, until just tender
Drain vegetables and mix with cheese, mayo, celery, and onion
Put into greased casserole dish
Melt margarine and mix in crackers or Cheez-it's
Put cracker crumb mixture on top
Bake at 350 for 30 minutes
We love to have this casserole not only for Thanksgiving but also throughout the year. It’s the perfect side dish for any special occasion like Easter or Christmas. What is a favorite side dish in your family?

This sounds yummy. I am going to try and I think it would be good with the flip sides ~ pretzels and ritz. Pinning
Oh yeah what a good idea! Thanks for checking it out!
Emily
I think this is the first time I’ve visited a post of yours that wasn’t about TV. 🙂 This looks really good. Pinning. Have a great day.
Yes with all the moving I have not had a lot of time to create new recipes lately. I’m glad to be able to get back to them now.
Emily
Ooh yum, this looks delicious Emily! The perfectly warm comfort food for dinner. 🙂
It really is! Thank you for checking it out!
Emily
Easy, delicious and it has a crunchy cracker topping…..that’s the perfect Thanksgiving side dish if you ask me!
Yes I do agree!
Emily
Great recipe! I love Ritz cracker crumb topping!
You and me both!
Emily
Looks great! Love all the colors!
Yes it makes a pretty casserole!
Emily
This looks delicious and is so easy to make. Thanks for sharing. Pinning to try later.
It is both! Thank you for coming by and pinning it!
Emily
This looks yummy. I’m thinking I might try it as a “leftover” recipe. Throw some leftover turkey and leftover veggies in and make a meal out of it! Pinning!
That sounds like a good plan! Thank you for checking it out!
Emily
This looks delicious! I love finding new ways to make dishes with a lot of vegetables! Great idea.
Me too! Thank you for checking it out!
Emily
I am loving all the Thanksgiving recipe ideas going around these days, and this looks amazing! I would even make this for a normal dinner during the week! Thanks for sharing–pinned 🙂
~ Jenn
Yes for sure! It is really good and a great way to get those vegetables!
Emily
Yum Yum!! gonna have to try!
Yes it is so good!
Emily
Happy Thanksgiving Thursday! This sounds yummy.
Thank you!
Emily
Looks yummy! I love recipes that call for ritz crackers…it adds the perfect amount of crunch.
Me too!! The buttery crackers make it so delicious.
Emily
Emily thank you for sharing. This looks yummy! pinning
Thank you for coming by and checking it out!
Emily
This sounds SO Southern- I can picture this on any kind of Texas Thanksgiving table.
It is quite southern. Thank you for coming by!
Emily
This looks so yummy! I’m missing Thanksgiving with my family this year, too :-/
Yeah it’s not my favorite but I get to spend Christmas with them this year so that helps :). This is delicious! Thank you for coming by!
Emily
My husband is going to LOVE this! I was excited when you mentioned the Ritz, but ELATED when you mentioned the Cheez-Its! I’m pinning this and I think I’m going to make it for my hubby next week. 🙂
Yes it is yummy! I hope you both love it!
Emily
This looks so yummy! I’m going over to pin it right now! Thanks for sharing on the DBB!
Thank you for coming by and checking it out!
Emily
Thanksgiving Thursday- good idea! 🙂 I’m always looking for new veggie side dishes! Pinning
Thank you!
Emily
Hi there! Stopping over from the Think Tank !
This dish looks sooo yummy! Something my little family would love. Pinning! Thanks for sharing!
I hope you enjoy it! Thank you for coming by the blog and for pinning!
Emily
This is my very favorite casserole! Yum! Love it!
Yumm, what an awesome veggie casserole idea! Some of my family is not crazy about mayonnaise so I subbed 1/2 c. sour cream and 1/2 c. mayonnaise, it came out extra creamy! In my opinion the onion and celery made this dish exceptional! Never thought of adding celery and onion to mixed veggies! Clever and oh so tasty!! Family loved it (and no one noticed the mayo!) 🙂 Thanks for sharing!
Monica, I am so so glad y’all enjoyed it so much. It is one of our family favorites! And I love the idea of subbing sour cream for some of the mayo!
Emily
My family has been making this casserole for 30+ years! It’s a must for our family holiday dinners. The only difference is that we add an 8 oz. package of cream cheese. It’s so delicious and creamy! 🙂
Ooh that sounds good!
Emily
hi Emily…regarding your vegetable casserole recipe, can you tell me what you
consider to be a LARGE bag of vegetables? can you give the ounces of the bag, please?
thanks so much!
Hi Sandy,
I would look for a bag that is 28-32 oz and as you’re mixing up the casserole just add gradually to make sure it doesn’t seem too dry. I hope you enjoy!
Emily
I’ve made this & it’s DELICIOUS!. Well worth the effort & comes together quickly! Thanks for the recipe & stay safe! 🙂
Thank you Kathy! I’m so glad you enjoyed it!