Try this homemade Threadgill’S San Antonio Squash Casserole recipe the whole family will love. Made with butter, yellow onions, yellow squash and Velvee…
This Threadgill’S San Antonio Squash Casserole relies on simple, everyday ingredients such as yellow onions, diced, green chili, diced and breadcrumbs. It comes together quickly and makes 4 servings, at about 380 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026