Great sandwich for two, for those on a calorie-sensitive diet.
Step: 1
Mix tuna, guacamole, tomatoes, mayonnaise, lemon juice, and flax seed in a bowl with a fork. Fill split rolls with tuna mixture.
Per Serving: 415 calories; protein 24.2g; carbohydrates 45.2g; fat 15.5g; cholesterol 21.5mg; sodium 519.8mg.