Yeah it's always surprising when I hear Americans say that eating healthy is more expensive that eating fast food / eating unhealthy.

When I was veggie and just eating vegetables I could buy a week's worth of food for about £10 a Kilogram of carrots was about 50p potatoes were 60p/kg brocoli and salad item were a little bit under £1/kg

Then as you said basic things like pasta is pretty cheap, I used to get 1kg of pasta for 30p and then a jar of tomato pasta sauce for 60p and that could last me 3 meals.

Additionally, going out to eat has many hidden costs, like liquor tax in some cities on an already overpriced drink. Soda or Iced tea is $2.50 or more. Now add tax and tip and your $7 cheeseburger & coke is $25.

It's not for everyone, but my family has been enrolling in CSA (Community Supported Agriculture) produce. It's cheaper and local. Granted, I'll get 3 eggplants in a box one week and I need to get creative to be able to use it, but that's part of the fun. I've expanded my produce repertoire 5-fold and now know how to cook fennel.