Quick & Easy Tuna Avocado Boats (10-Minute Lunch)

Ingredients

• 2 cans (5 oz each, 142 g each) tuna in water, drained well
• 3 tablespoons mayonnaise or plain Greek yogurt
• 1 celery stalk, finely diced
• 2 tablespoons finely diced red onion
• 1 tablespoon fresh lime juice, plus more for brushing
• 1 teaspoon Dijon mustard
• 1 tablespoon chopped fresh dill, cilantro, or chives
• 1/2 small jalapeño, seeded and finely diced, optional
• 1/4 teaspoon fine salt, plus more to taste
• 1/8 teaspoon black pepper
• 2 medium ripe avocados
• 1 tablespoon microgreens or extra herbs, for garnish
• Lime wedges, for serving