Lunch: 350-Calorie Meals & Portions These midday meals contain 350 calories each--the perfect amount to keep you going without wrecking your diet. Packing one of the homemade lunches on the left doesnt take long, and look at all those low- cal and filling veggies youll get! Notice how seemingly healthy options like the restaurant foods on the right can be very misleading! Those 350-calorie portions are pretty small. Pack a healthier lunch with these tips.