Pan-Seared Radicchio with Orange and Walnut Vinaigrette

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

This salad features pan-seared radicchio leaves dressed in a bright, bitter-sweet orange and walnut vinaigrette, balancing sharp and astringent flavors with nutty richness. This mediterranean-inspired salads (vegetarian) ready in about 15 minutes pairs medium head, quartered radicchio, extra virgin olive oil, fresh squeezed orange juice 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 150 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 Cook: 5 min Serves 4 Mediterranean cuisine 150 cal/serving
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Ingredients

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Instructions

  1. Step 1: Heat 2 tbsp extra virgin olive oil in a large skillet over medium-high heat until shimmering. Add 1 medium head of radicchio quartered, placing the pieces cut side down. Sear for 2-3 minutes until edges are slightly charred and radicchio is softened, then flip and cook for another 1-2 minutes. Remove from heat.
  2. Step 2: In a small bowl, whisk together 1/4 cup fresh squeezed orange juice, 2 tbsp white wine vinegar, 1 tsp honey, 1/2 tsp salt, and 1/4 tsp black pepper until emulsified. Slowly drizzle in 1 tbsp extra virgin olive oil while whisking to create a smooth vinaigrette.
  3. Step 3: Arrange the seared radicchio on a serving plate, drizzle the orange-walnut vinaigrette over the top, and sprinkle with 1/4 cup toasted chopped walnuts for a crunchy, bitter-sweet finish.

Frequently asked questions

How long does Pan-Seared Radicchio with Orange and Walnut Vinaigrette take to make?

Total time is about 15 minutes (10 min prep + 5 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 Pan-Seared Radicchio with Orange and Walnut 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 extra virgin olive oil from drying out.

Can I substitute ingredients in Pan-Seared Radicchio with Orange and Walnut 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 Pan-Seared Radicchio with Orange and Walnut 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 Pan-Seared Radicchio with Orange and Walnut 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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