Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A refreshing salad combining sweet blueberries, tangy feta, and vibrant spinach leaves, tossed in a zesty vinaigrette with a hint of red onion for a colorful, healthy dish. This mediterranean-inspired salads (vegetarian) ready in about 10 minutes pairs baby spinach leaves, fresh blueberries, crumbled feta cheese into a side that holds its own next to almost any main — bright, balanced, and quick enough to slot into a weeknight plate. Each serving lands at about 210 calories and feeds 4, so it slots cleanly next to roasted proteins, grain bowls, or weeknight mains. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Serves 4 Mediterranean cuisine 210 cal/serving
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Ingredients

Instructions

  1. Step 1: In a small bowl, whisk together 3 tbsp extra virgin olive oil, 2 tbsp red wine vinegar, 1 tsp honey, 1/2 tsp Dijon mustard, 1/2 tsp salt, and 1/4 tsp black pepper until the vinaigrette is smooth and emulsified.
  2. Step 2: In a large salad bowl, combine 6 cups baby spinach leaves, 1 cup fresh blueberries, 3/4 cup crumbled feta cheese, and 1/4 small thinly sliced red onion. Pour the vinaigrette over the salad and toss gently to coat all ingredients evenly.
  3. Step 3: Sprinkle 1/4 cup toasted sliced almonds on top for crunch and serve immediately for a bright, healthy side or light main dish.

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Frequently asked questions

How long does Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette take to make?

Total time is about 10 minutes (10 min prep + 0 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep baby spinach leaves from drying out.

Can I substitute ingredients in Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Blueberry, Feta, and Spinach Salad with Red Onion Vinaigrette vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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