Wash and slice your yellow squash and stick them in a microwave safe bowl.
Chop onion and add to bowl.
Add in just enough water to get the bottom of the bowl covered. It should look about ½-1 inch tall with the onions and squash in the bowl.
Cover the top with Cling Wrap and then microwave for 3-4 minutes until soft. You can add additional 30 second-1 minute increments if you want them cooked more.
Drain water and add in seasonings. Toss to coat.
Serve warm.
Notes
Make sure to use microwave-safe cling wrap and a microwave-safe bowl.
Microwaves vary in strength so the time needed to cook your squash may vary. The goal is to have it look slightly translucent (or as translucent as you want). You can always add another 30 seconds- 1 minute and check on it if it's not done to your liking.
The water is added by sight, not by actual measure. You want just enough to cover the bottom of the bowl, by about ½-1 inch of depth.