Warm up with this hearty Sig's Mixed Onion and Tomato Soup recipe. Made with white onions, red onions, shallots and salad potatoes. Easy step-by-step in…
This Sig's Mixed Onion and Tomato Soup relies on simple, everyday ingredients such as small to medium white onions, small to medium red onions, large shallots and unsalted butter. It comes together quickly and makes 4 servings, at about 239 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