Red Onions: One-Pot Weeknight Recipes

Weeknight Suppers keeps 32 recipes that call for red onions on hand. This page exists so that when you find red onions in your fridge, your cart, or on sale at the store, you can walk straight to a real one-pot weeknight dinner instead of staring at a generic search results page.

Where Red Onions fits on a weeknight

In our library, red onions shows up most often in Vegetarian dishes — a good signal of where it tends to feel most at home on a weeknight plate. You will see it lean into Vietnamese recipes more than any other tradition, though the ingredient travels well across cuisines. And it pairs naturally with the Sheet-Pan Dinners technique — that's the cook method most of these recipes use.

How we use red onions

Every recipe in this collection treats red onions as a real ingredient with a job to do — never as filler, never as a garnish that you could leave out without anyone noticing. We tested each recipe with the ingredient at the center of the dish, swapped substitutions only where they clearly worked, and noted the ones where red onions is genuinely the star versus the ones where it's part of an ensemble.

If you bought red onions for one specific recipe and have leftovers, scan the cards above for a second use — most of these dinners are designed to clear out a half-used package on the second night, which is the quiet superpower of cooking from an ingredient list rather than a meal-plan list.

Top categories that use red onions

Vegetarian (10) · Chicken (6) · Seafood (5) · Lamb (4)

Top cuisines that use red onions

Vietnamese (5) · Turkish (3) · Thai (3) · France (2)

Top cook methods that use red onions

sheet-pan (10) · skillet (10) · stir-fry (6) · salad-bowl (4)

Shopping & storage notes

Buy red onions when it looks fresh and in season — that's when it's cheapest and tastes the most like itself. For weeknight cooks, the most useful skill is portioning at the moment you bring it home: split the package into recipe-sized portions, label and freeze what you won't use this week, and you've removed the single biggest blocker to cooking from your fridge instead of from a takeout menu. The recipes above are all designed to use a normal portion of red onions — no oddly large or specialty quantities.

From here, you can browse every ingredient in the library, jump to cook methods, or filter to dinners ready in 30 minutes or less.