Super lunches in 2013 for less than 30 Euros, for the budget minded, students, reasonably-priced meal searchers and cheapies like me.

Here's a quick and dirty look at eight 2013 lunches, giving my rating 0-10 and the price for 3-courses (sorry for the lack of coordinates but they are all searchable here):
7.9 Cantine de La Cigale 25-40 E a la carte
7.5 Les Premices 24 menu
6.7 Encore 30 menu
6.6 Verre Moutarde 29.50 menu
6.5 Gagnage 22 menu
6.2 Jeanne B. 17 menu & Cuistance 27 menu
6.1 Chameleon 19 menu