It is always not necessary that your party has to be elaborate and organized on a big budget. If your party is at home then the expenses you mostly have to go through are for food. But you dont have to make something very costly. Be it food or beverages you can keep it simple and stylish. In case of beverages you can opt for fresh lime drinks, or colas. A punch made out of orange juice and cola can also be an interesting drink.
For food you may be tired of serving your friends with the conventional chips and salsa dip then opt for some Mexican meatballs. You get ready to eat meatballs which can be just fried a little and dipped in a Mexican sauce. Easy to make and a favorite among many is pasta and garlic bread. Another easy snack item would be fried chicken wings which are very tasty and should be served hot. For the vegetarians you can keep some cheese sticks and grilled veggies.
You can also arrange for potluck and ask people to bring people particular kind of dishes. You can cook up something on your own or stuff buns with some meat pieces and capsicum. Wontons can be excellent starters which are cheap and easy to make. There can be many such food ideas but the key is to present these food items in a unique and stylish way so that the simple food items seem to be very alluring to your guests.