Here is a meal that most of the items you can snag at Dollar Tree, granted this will make more then one side dish and you won't find cauliflower there.
Cheesy Cauliflower Mashed Potatoes
2 cups of instant potatoes--$1/2 Idaho spuds product, exp. 11/10 (SS 9/16)-Dollar Tree
**you can use real potatoes**
1 3/4 chicken broth or you can just use water.
1/3 c parmesan cheese
2 cups of cauliflower
1/4 cup of chives (optional)
In large pot of boiling salted water cook cauliflower 5min or until fork-tender, drain.
Transfer cook cauliflower to food processor. Process until smooth, scrapping down sides of bowl as needed.
Prepare instant mashed potatoes according to package, you can use water or broth. Stir in cauliflower and Parmesan cheese and then Enjoy.
My 4yr old will not eat potatoes though with this recipe she will devour it and you honestly can not tell these are instant potatoes.