Processed food is _so_ cheap.
[0] https://www.walmart.com/grocery/ip/Great-Value-Rising-Crust-...
That's right. But you can get a microwave for $9.99 at the thrift store. I see bread machines for a similar price. If you can follow directions like "gather the ingredients, dump them in the bread machine, push a button" you can make incredibly tasty fresh bread for next to nothing.
Just yesterday I went to the thrift store, and donated a bunch of stuff I don't use anymore, and bought a bunch that I did have a use for. It's a cheap way to live without compromise.
A pound and a half of pizza, not even close?
The nutrition in the steak is better, but I don't see any other basis of comparison where it could be cheap. The right candy bar (high in peanuts) will have lots more calories and something like 50% of the protein, for half the total price of the steak.
The other reply already pointed out how cheap wheat calories can be.
And a dozen eggs for $1.99.
The store also sells bulk peanuts for far far less than peanut candy bars cost. Like $2.99 per pound. You pour it in a bag, weigh the bag, put the label on it, and voila! And it's good for you, too, unlike the sugar-ladened candy. No prep required.
So? They're still cheaper than chips and a lot better for you.
Beef is dirt cheap compared to candy bars, frozen pizza and chips.