Au Pied de Cochon (This blog excerpt was sent to me by Ginan. I took one little side street and there it was, very close to the apartment!)
As famous a brasserie then as it is now, Julia [Child] came here—sometimes in the hours just before dawn after a night out—for their traditional onion soup.
Visit It: One of the few remnants of Les Halles' raucous all-night past is this brasserie, which has been open every day since 1946. Now run by the Frères Blanc group, it still draws both a French and a foreign crowd with round-the-clock hours and trademark traditional fare such as seafood platters, breaded pigs' trotters, beer-braised pork knuckle with sauerkraut, and cheese-crusted onion soup. It's perfect ribsticking fare for a winter's day or to finish off a bar crawl. The dining room, with its white tablecloths and little piggy details, feels resolutely cheerful. 6 rue Coquillière. 01–40–13–77–00. AE, DC, MC, V. Metro stop: Les Halles.
The reviewer was correct. The French Onion soup was really good with a cheesy crust on top.
The blog article also recommended what turned out to be another spot very close to the apartment.
E. Dehillerin
Julia Child was a regular here; and this is where she'd buy kitchenware while she was attending cooking school at Le Cordon Bleu.
Visit It: E. Dehellerin has been around since 1820. Never mind the creaky stairs; their huge range of professional cookware in enamel, stainless steel, or fiery copper is gorgeous. 18–20 rue Coquillière, 1er, Louvre/Tuileries (I don't think that this is the closest Metro stop.)