Eggs, bread, cheese and Mayo or ketchup. I could eat egg and cheese sandwiches 7 days a week if I had to. Aldis eggs are usually around $1-2 for a dozen, bread is about a dollar. The big pack of aldis brand cheese is about $2 for 16 slices. Not counting sauces since you don’t have to buy those often
16 cents per egg Estimating 10 cents a slice but probably less 12 cents per slice of cheese About 38 cents per sandwich
Then throw in some various fruit and vegetables
Banana, cucumbers, snap peas are cheap
Edit: you said not common. Sorry lol
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