Cook squash by your favorite method until just tender, not mushy.
How we cook the squash: Preheat oven to 400. Peel the squash, then cut in half to remove seeds. Cut in 1" slices. Spray baking pan with non-stick spray. Put slices on pan and spray them. Cover tightly. Bake 20 minutes until just tender when pierced with a fork.
Cool squash, and cut into chunks (about 1" cubes if you're trying to measure).
Combine remaining ingredients and toss with squash.