Wash the yellow squash and trim off the ends
Slice the squash into rounds or half-moons
Heat a skillet over medium heat
Add butter or oil to the skillet
Add the squash to the skillet in a single layer
Sprinkle with salt and pepper
Cook for 5 to 8 minutes, stirring occasionally
Cook until the squash is tender and lightly browned
Add garlic, herbs, or other seasonings if desired
Serve immediately