Cauliflower can be used to make "cauliflower mash" as a potato substitute. It has a mild flavor and a creamy texture when cooked.
While still starchy, sweet potatoes are more nutritious than regular potatoes. They have a slightly sweet flavor and work well in various dishes.
Turnips have a slightly earthy and slightly bitter flavor when cooked. They can be roasted or mashed for a potato-like experience
Parsnips have a sweet and nutty flavor. Roasting or mashing them can provide a satisfying potato alternative.
Butternut squash has a naturally sweet flavor and a starchy texture when cooked. It can be roasted, mashed, or used in soups.
While not exactly similar in taste, zucchini can be used in creative ways to reduce carbs. It can be spiralized into "zoodles" or used in casseroles.
Rutabaga has a slightly peppery and earthy flavor. When cooked, it can be mashed or roasted for a potato-like consistency.
While not exactly like potatoes, it's a low-carb option for creating hearty dishes.