If you are planning a party with a Mexican fiesta theme, your menu will be a big part of furthering your theme. Consider all types of Mexican foods. Both those that are familiar to most people and some that might be unfamiliar. Be sure to have plenty of tequila cocktails on hand to complement your Mexican food.
Serve appetizers to your guests when they arrive. Consider making two different types of salsa, a red one and a green one, and serve them with fresh tortilla chips. Make one spicy and one mild so that every palate is satisfied. A warm, spicy cheese dip is another great Mexican appetizer. If you are serving a sit-down dinner, give your guests bowls of tortilla soup before the meal. For a buffet style party, serve the soup in shot glasses. Guests can take one and sip it.
Many people love fajitas, so serve your guests both chicken and beef at your Mexican fiesta. Have waiters bring platters of sizzling fajitas to your tables. Alternatively, have a fajita station set up where your guests can receive plates as they are being cooked.
For a buffet-style party, make a taco bar with all the trimmings. Include platters of marinated chicken, ground beef, steak and shrimp. Taco toppings can include lettuce, tomato, cheeses, peppers, avocado, salsa, cilantro and pico de gallo. Be sure you have both hard and soft shells for every guests' preference.
No fiesta is complete without dessert. Serve the traditional Mexican flan, or, think outside the box a little bit and give your guests chocolate quesadillas for a fun twist on a Mexican standard. Make the quesadillas as you normally would, but fill them with chocolate sauce instead of cheese. Use Mexican chocolate for a little kick.