As a frugal trick, it works great. As a cooking technique...not always.
Above, Pioneer Woman's chicken spaghetti becomes something that's almost as good.
- green pepper and pimento = $1 frozen bag of tri-color peppers and onions
- canned condensed soup = homemade base
- 2 cups cheddar = mexican cheese I bought on sale
For quick reference, bookmark this handy list of ingredient substitutions from Allrecipes.com.