Rinse and dry rainbow chard. Stem and roughly chop
Peel and halve onion and thinly slice
Open beans. Rinse and strain
Pat chicken dry with a paper towel and season with salt and pepper. Heat oil until shimmering and carefully place chicken thighs. Brown for five minutes.
When the chicken easily lifts from pan, flip the pieces over and add onion slices
Slice andouille links in half and and then slice into half moons. Add to pan and cook for another 5-8 minutes.
Add the tomatoes, swiss chard and beans. Season with garlic powder
Cover with lid and simmer on medium/low heat for 20 to 25 minutes
Mix tablespoon of cornstarch into the cold water and add to pot. Stir and let thicken for another two minutes