RECIPE IDEA: Roasted Sweet Dumpling Squash—SWWWEEEET! Hi. It's Lois in the kitchen at Recipe Idea Shop, telling you about Roasted Sweet Dumpling Squash. I think I have just found my favorite squash. Roasting Sweet Dumpling Squash brings out the natural sweetness. It is SO good! Until this summer, I had never tried this Sweet Dumpling Squash.