30-Minute Layered Quinoa Salad

Prep: 20 minCook: 5 minmedium
Layered Quinoa Salad with Pickled Red Onions

A vibrant make-ahead jar salad featuring crisp vegetables, protein-rich quinoa, and tangy pickled onions layered with balsamic tamari dressing. Perfect for meal prep or outdoor gatherings, this colorful salad combines fresh tomatoes, bell peppers, corn, and romaine with nutty hemp hearts. The quick-pickled onions add a sharp contrast that mellows over time, while the Asian-inspired dressing brings umami depth with tamari and maple syrup.

Ingredients

  • ¼ cup pickled red onion, see recipe
  • ½ red pepper red pepper, finely diced
  • 1 cup tomatoes, diced
  • ¼ cup corn
  • cup quinoa
    brown ricesame amountgrain-free

    cooked and cooled

    Full guide →
  • romaine lettuce
  • 1 tablespoon hemp hearts
    sunflower seedssame amountnut-free

    toasted for extra crunch

  • 2 teaspoons parsley, finely chopped(optional)
  • balsamic dressing, see recipe
  • 1 red onion, for pickling
  • 1 ½ cups white vinegar
  • 1 tablespoon stevia, or 2 tablespoons sugar
    sugar2 tablespoonsketolow-carb

    natural sweetener swap

    Full guide →
  • 1 tablespoon salt
  • ¼ cup oil
  • ¼ cup Tuscanini Balsamic Vinegar
  • 2 tablespoons tamari sauce
    soy saucesame amountgluten-freeadds glutenadds soy

    traditional soy sauce works

    Full guide →
  • 2 tablespoons Gefen Maple Syrup
  • ¼ teaspoon dried ginger

Instructions

  1. 1

    Peel and slice red onion into thin slices and place into a container with resealable lid

  2. 2

    Stir together vinegar, stevia or sugar, and salt in a small saucepan

  3. 3

    Bring mixture to a boil, then remove from heat

  4. 4

    Pour mixture over onions in jar until full and place the lid on

  5. 5

    Let cool to room temperature, then seal and refrigerate

  6. 6

    Layer two to three tablespoons of the dressing in the bottom of the jar

  7. 7

    Continue layering pickled red onion, diced red pepper, diced tomatoes, corn, and quinoa

  8. 8

    Fill rest of the jar with tightly packed romaine lettuce

  9. 9

    Top with hemp hearts and parsley

Tips

Tip 1

Layer ingredients from heaviest to lightest to prevent soggy lettuce - dressing on bottom, sturdy vegetables in middle, greens on top.

Tip 2

Make pickled onions up to a week ahead for deeper flavor and better meal prep convenience.

Tip 3

Shake jar vigorously before eating to distribute dressing evenly throughout all layers.

Good to Know

Storage

Refrigerate assembled jars up to 4 days. Keep dressing separate if storing longer.

Make Ahead

Make pickled onions up to 1 week ahead. Assemble jars 1-2 days before serving.

Serve With

Shake jar well before eating. Pour into bowl or eat directly from jar.

See pairing guide →

Common Mistakes

Watch

Use wide-mouth jars to avoid messy layering and difficult eating access.

Watch

Cook quinoa completely and cool before adding to prevent wilting other ingredients.

Substitutions

Gluten-Free Swaps

tamari
soy saucesame amountgluten-freeadds glutenadds soy

traditional soy sauce works

Full guide →

Nut-Free Alternatives

hemp hearts
sunflower seedssame amountnut-free

toasted for extra crunch

Full guide →

General Alternatives

stevia
sugar2 tablespoonsketolow-carb

natural sweetener swap

Full guide →
quinoa
brown ricesame amountgrain-free

cooked and cooled

Full guide →
Find more substitutions →

FAQ

Can I make this without quinoa?

Yes, substitute cooked brown rice, farro, or chickpeas for similar protein and texture. Adjust quantities to your preference.

How long do the pickled onions keep?

Properly stored pickled onions last 2-3 weeks refrigerated in their pickling liquid. Use clean utensils when removing portions.

What if I don't have mason jars?

Use any airtight container, layering dressing on bottom. The key is keeping wet ingredients away from greens until ready to eat.