Viral Tuna Chickpea Cucumber and Parsley Salad

Name: Viral Tuna Chickpea Cucumber and Parsley Salad
Prep time: 10 min
Cook time: 5 min
Total time: 15 min
Cuisine: American
Ingredients: 1 to 2 teaspoons Dijon mustard; 2 to 3 tablespoons apple cider vinegar; 1/2 to 3/4 cup good quality olive oil (extra virgin); salt and pepper (to taste ); 1 can albacore tuna (drained ); 1 teaspoon olive oil (extra virgin); 1/2 tablespoon capers (+ more if desired ); 1 cup diced seedless cucumbers; 1 cup cherry tomatoes (sliced in half ); 1 heaping cup canned chickpeas (drained and rinsed + more if desired ); 2 cups cooked brown rice*; 1 cup fresh parsley (chopped or finely diced ); 1/2 cup pickled red onions** or red onions (chopped or finely diced ); 1/2 cup pecans (chopped); lemon wedges (optional )