Grilled Citrus-Marinated Flank Steak with Avocado Salsa

By AislePrompt Editorial · Published 2026-05-25 · Updated 2026-05-25

Flank steak marinated in bright citrus juices and grilled to perfection, topped with a fresh avocado salsa bursting with flavor. This Whole30 recipe (gluten free, dairy free), ready in about 25 minutes, pairs flank steak, orange juice, lime juice for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 380 calories and feeds 4, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. 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.

Ingredients

• 1.5 lbs flank steak
• 1/4 cup orange juice
• 2 tbsp lime juice
• 3 garlic cloves, minced
• 1 tsp ground cumin
• 1 tsp sea salt
• 1/2 tsp black pepper
• 2 tbsp extra virgin olive oil
• 1 large ripe avocado, diced
• 1 cup cherry tomatoes, quartered
• 1/4 cup red onion, finely chopped
• 3 tbsp fresh cilantro, chopped

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Instructions

1. Step 1: In a glass dish, whisk together 1/4 cup orange juice, 2 tablespoons lime juice, 3 minced garlic cloves, 1 teaspoon ground cumin, 1 teaspoon sea salt, 1/2 teaspoon black pepper, and 2 tablespoons extra virgin olive oil.
2. Step 2: Add 1.5 lbs flank steak to the marinade, turning to coat well. Cover and refrigerate for at least 1 hour or up to 4 hours.
3. Step 3: Preheat grill to medium-high heat (about 400°F). Remove steak from marinade and grill for 5-6 minutes per side for medium-rare, or to desired doneness. Let rest for 5 minutes.
4. Step 4: Meanwhile, combine 1 large diced ripe avocado, 1 cup quartered cherry tomatoes, 1/4 cup finely chopped red onion, and 3 tablespoons chopped fresh cilantro in a bowl. Season with a pinch of salt and toss gently.
5. Step 5: Slice the rested flank steak thinly against the grain and serve topped with the fresh avocado salsa.