Rocky Mountain Herb-Roasted Vegetable Salad

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A colorful roasted vegetable salad featuring heirloom tomatoes, zucchini, and garden herbs, tossed in a tangy lemon-dill vinaigrette. This american-inspired salads (vegetarian) ready in about 43 minutes pairs medium, sliced 1/2-inch thick Zucchini, quartered Heirloom tomatoes, thinly sliced Red onion 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 220 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.

★ 3.8 (12 ratings) Prep: 15 min Cook: 28 min Serves 4 American cuisine 220 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F (200°C). Toss 1 medium sliced zucchini, 1 medium sliced yellow squash, 2 cups quartered heirloom tomatoes, and 1/2 cup thinly sliced red onion with 3 tbsp olive oil, 1/4 tsp kosher salt, and 1/4 tsp black pepper on a large baking sheet.
  2. Step 2: Roast for 25-28 minutes, stirring once halfway through, until vegetables are tender and slightly caramelized around the edges.
  3. Step 3: In a small bowl, whisk together 2 tbsp lemon juice, 1 tsp Dijon mustard, and 2 tbsp chopped fresh dill until emulsified.
  4. Step 4: Transfer roasted vegetables to a large bowl and pour the lemon-dill dressing over them. Toss gently until all vegetables are evenly coated.
  5. Step 5: Let sit for 10 minutes before serving to allow flavors to meld, then adjust seasoning with additional salt and pepper if needed.

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Frequently asked questions

How long does Rocky Mountain Herb-Roasted Vegetable Salad take to make?

Total time is about 43 minutes (15 min prep + 28 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 Rocky Mountain Herb-Roasted Vegetable Salad?

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 quartered heirloom tomatoes from drying out.

Can I substitute ingredients in Rocky Mountain Herb-Roasted Vegetable Salad?

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 Rocky Mountain Herb-Roasted Vegetable Salad 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 Rocky Mountain Herb-Roasted Vegetable Salad 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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