Eat homemade meals as much as humanly possible, but when not possible...

Select restaurants that are vegetarian and better yet, vegan-friendly (check on Zomato.com and Happycow.net). Indian restaurants tend to accommodate, just make sure you ask for no flesh, no dairy, which includes yogurt, no oil or Gee. Gee is clarified butter.

Buy the Happy Cow App (Android or iPhone) which tells you vegan-friendly restaurants nearby.

Call ahead and ask the manager if you order a certain meal on the menu can they make it vegan with no oil. 

Ask for whole wheat pasta that is made with no egg or dairy. Often gluten-free pasta is vegan. Potato Gnocchi is fine too. However, many restaurants add cheese to their Gnocchi, so ask.

Marinara sauces are sometimes made with meat stock and often made with oil, so ask before ordering.

Wine, particularly red wine, is the best option. Drinking standards: Women: 1 glass of wine per day max. Men: 2 glasses of wine per day max.

Many dishes may "almost" be vegan. You may see a salad listed with feta, goat cheese or mozzarella, just say hold the cheese. 

Ask the server to hold the dressing that comes with the salad, and then ask for just balsamic vinegar on the side. Consider bringing your own homemade no oil dressing.

Indian restaurants use clarified butter or oil in their rice 9 times out of 10 and use clarified butter in many dishes, so you’ll have to get very specific when asking them to give you a vegan meal. 

1 tablespoon of any kind of oil contains 13.5 grams of fat. All oil is high in saturated fat. However, coconut oil is the worst, containing 90% saturated fat. You would have to eat 11 cans of black beans to get 13.5 grams of fat, which still has NO saturated fat. Restaurants use an average of 3 tablespoons of oil to cook one meal. Oil causes one's liver to over produce cholesterol. Oil is bad no matter what you've heard, so avoid oil as much as possible.