I got a lot of grief over this in r/eatsandwiches , and called an outright liar, but roast beef sandwich, 315 calories.

ALDIs keto bread 70 calories

Lean Roast beef 5oz 170 cal

I cup lettuce 8 calories

Tomato slices, 2 oz 10 calories

Hellmans lite Mayo 1 tbs 35 calories

Inglehoffer creamy horseradish sauce 1.5 tsp. 15 calories

Very filling and satisfying