Eating out in Paris on a Budget

This is Paris and it is raining, which is as it should be. Paris rain is not as the rain of other cities. It is softer, benevolent. It caresses, rather than soaks.
Perhaps the main reason I come to Paris is because of the food. Not that I am a true gourmet. More a gourmand. It is perfectly possible to spend an arm and a leg on food in Paris. I am still in a state of shock after paying $17.50 for a single glass of beer. Granted, I was sitting on the pavement on the Champs Elysees and granted, I could have sat there all day. But I am still in shock. Normally I steer well away from such high-priced nonsense.
When you go to Paris