Eggs with zucchini

2 teaspoons olive oil 1 small zucchini or 1 small summer squash, halved lengthwise and thinly sliced 1/2 cup onion , chopped 1/2 cup red bell peppers or 1/2[...]

4 eggs , hard-cooked, chopped 1/2 cup thinly sliced celery 1/2 cup thinly sliced yellow bell pepper 1/2 cup thinly sliced red bell pepper 1/2 cup shredded[...]