Falling in Love with Okra
You can vary the portion size just by the amount of corn, okra, and onion you use - go by sight and use equal portions of each. Still pour out 1/4 cup half-and-half, but eyeball it and slowly add little by little until you get the suitable amount (not too dry but not too runny).
You may also add additional vegetables such as grape tomatoes cut in half, but don't overdo it. Adding too many flavors will overpower the dish. You don't want more than 5 different flavors at the most.