Satisfying and Protein-Packed Tuna Sandwich

on Jul 18 2025

Elevate your lunch routine with a MIND Diet–inspired take on the classic tuna sandwich, quick to prepare, rich in flavor, and designed to nourish your brain.  This recipe combines protein-packed tuna with other carefully selected, brain-supportive ingredients to deliver a satisfying and nutrient-dense meal.  Discover how to craft a lunch that not only tastes delicious but also aligns with the core principles of the MIND Diet to support long-term cognitive health.   

The MIND Diet, a blend of the Mediterranean and DASH diets, was specifically developed to support brain health.  Research shows that following this way of eating can reduce the risk of Alzheimer’s disease by over 50% and help keep the brain up to 8 years younger .1,2 

Tuna provides omega-3s (DHA and EPA), which help reduce inflammation and support the structure of brain cells, along with vitamin D3, known to help in hormone regulation, like melatonin.  Red onion adds a flavorful crunch and a dose of quercetin, a potent antioxidant that may help defend the brain from oxidative stress.   A mix of colorful vegetables brings in brain-supportive kaempferol, lutein, and zeaxanthin, which are associated with improved memory and protection against neurodegeneration.  Finally, the special addition of extra virgin olive oil delivers unique polyphenols such as hydroxytyrosol and oleocanthal, known for their anti-inflammatory and neuroprotective effects. 

Satisfying and Protein-Packed Tuna Sandwich

Laura Morris CPT and Jennifer Ventrelle RD

Servings

2 sandwiches

Prep Time

10 minutes

Cuisine

Mediterranean and MIND Diet

Category

Lunch

Satisfying and Protein-Packed Tuna Sandwich

Ingredients

  • ½ a crusty baguette, whole wheat if you can find it (you could also use 4 pieces sliced whole grain bread, or 2 large pitas) 
  • 1 6-ounce can tuna in olive oil, olive oil drained (or sub chickpeas for a meat-free version!) 
  • 1 tablespoon mayonnaise (you can sub low-fat plain yogurt or hummus) 
  • 2 tablespoons lemon juice 
  • 2 tablespoons chopped red onion 
  • ¼ cup chopped sweet pickles  
  • ¼ cup chopped mild pickled banana peppers 
  • 2 tablespoons extra virgin olive oil 
  • 2 cups arugula, lightly chopped 
  • Optional add-ins: tomato slices, fresh dill, fresh parsley, sprouts, cucumber slices, kalamata olives 

Directions

  1. Lightly toast baguette (or bread) in toaster or on stove top.
  2. In a medium bowl, combine the tuna, mayonnaise, lemon juice, red onion, pickles, and banana peppers.
  3. On each sandwich, lightly drizzle EVOO on bread/baguette. Add ½ tuna salad mixture. Top with arugula (about 1 cup per sandwich).