There's no need to go out for great Indian food. These vegetable samosas are super easy. And even if they aren't purely authentic (they're made with puff pastry to eliminate the need for making the dough), they are quite delicious.
Garam masala is a combination of several spices: coriander, cumin, cloves, pepper, cardamom, cinnamon, and bay leaves. You can buy it in most large supermarkets or gourmet markets.