tem wrote:Any advice on the menu or medium-term strategies in general ??
I've dated a disproportionate amount of vegetarians and diet has never been a problem in any of my relationships. If anything, I viewed dietary restrictions as a challenge and a way of expanding my own cooking skills. Whatever you do, don't try to convert your significant other into changing their diet. They should respect your diet, and you should respect theirs.
Otherwise, as for cooking ideas, there are multitudes of soup recipes that are easily adaptable into vegetarian-friendly equivalents, say, poblano-and-corn chowder, meatless borscht, potato leek soup, etc. Just start with a vegetable stock instead of meat stock. Indian cuisine, as has been mentioned, (especially the cuisines of Gujarat and Rajastan) is always a goldmine of recipes, given the significant vegetarian population there. Italy has a number of pasta dishes that are either vegetarian-friendly or adaptable. My favorite pasta dish, in fact, is vegetarian - Penne all'arrabiata. While it won't be the same, you can make puttanesca without anchovies that's quite lovely, too. Also, if you comb the cuisines of Central and Eastern Europe, you'll find a number of potato and noodle dishes suitable to vegetarians. A lot of meat recipes do well with legumes (chickpeas, especially), substituting for the meat component. And, if you must go in the faux-meat direction, there's always Boca and their type of meat substitutes (which I hated for the longest time, and now find myself occasionally craving. Yes, I will sometimes order a Boca or vegetarian burger when a meat one is available.)
There's a whole lot of great meatless cuisine out there, and, if you love cooking as much as I do, you should view this as a fun challenge and a way to expand your cooking repertoire. Go into it with an open mind (seems like you are), don't try to change her diet, just do your best to make her happy. Have fun with it! Cooking vegetarian is not a chore. It's a rewarding challenge. Good luck.