High-Protein White Bean & Tuna Salad

Name: High-Protein White Bean & Tuna Salad
Cuisine: American, Mediterranean
Ingredients: 2 5-oz cans tuna packed in water or extra virgin olive oil; 1 15-oz can cannelloni or navy beans, drained and rinsed; 1/2 cup Kalamata olives ((optional)); 1/3 cup oil-packed sun dried tomatoes, diced; 1/3 cup parsley, finely chopped; 1/4 cup red onion, diced; 1/2 lemon, juiced; 1 tbsp extra virgin olive oil, plus more for serving; 3/4 tsp sea salt; 1/2 tsp ground pepper; 3 cups baby arugula; 1 avocado, sliced; red chili flakes