I consider myself to be a very good cook. (This opinion is confirmed by the kids.) When sauteeing onions with other vegetables, such as yellow squash or zucchini, always begin by sauteeing the onion first, then adding the squash, which in my opinion cooks faster than onion. Result onions and squash both soft and golden in color.
My husband considers himself to be a good cook. (This opinion is not backed up by the kids.) He sautees the squash until it is thoroughly cooked before adding the onion. Result mushy squash and barely warm, uncooked onions.
Last week while he was out barbecuing the steak I threw the onions in with the squash to try to get them cooked. But when he came back in I heard him curse. So this week I am sitting here typing instead.