A bell pepper filled with tuna salad is a colorful Monday low carb lunch. No bread, built-in portion control, and looks way more put-together than it took to make.
Slice the bell peppers lengthwise and remove seeds, keeping stem attached for structural support.
Drain the canned tuna thoroughly to avoid excess moisture, then transfer to a mixing bowl.
Finely chop celery and red onion, and add them to the tuna.
Add mayonnaise, lemon juice, salt, and black pepper. Mix gently until evenly combined, being careful not to mash the tuna.
Fill each pepper half completely with the tuna salad, packing lightly for a clean presentation. Serve chilled or at room temperature.