Cook squash in boiling water to cover 8 to 10 minutes or until tender. Drain squash, and press between paper towels.
Melt butter in a large skillet; add chopped onion and garlic, and sauté until tender.
Combine onion mixture, squash, soup, and remaining ingredients; spoon into a lightly greased 11- x 7-inch baking dish.
Bake at 350° for 30 minutes or until bubbly.
Weaver D's, Athens, Georgia
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