Measure 3 oz of tuna salad, and spread on low-carb tortilla.
Add tomato, lettuce, green peppers, olives as desired.
Fat 4gm, Carbs 4gm, Protein 18gm
For dessert, nothing beats sugar free tapioca pudding, available in the refrigerated pudding section at Walmart. Each pudding is 11 grams carbs, minus 4gm fiber. This makes the grams of protein and carbs approximately equal for the meal.