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| yellow squash: 4 (sliced) |
| red tomatoes: 4 (sliced) |
| green onions - spring or scallion: 2 whole onions (chopped) |
| red wine vinegar: 2 Tbl |
| olive oil: 2 Tbl |
| Dijon mustard: 1 Tbl |
| salt: 1/2 tsp |
| black pepper: 1/4 tsp (freshly ground) |
Credit: AllRecipes
"My mother always fixed this for us during the summer and for potluck dinners, and everyone always ate it up and would ask for more."