What’s the difference between Burrito, Taco and Quesadilla?

Burrito

A burrito is a dish in Mexican and Tex-Mex cuisine that consists of a flour tortilla with various other ingredients. It is wrapped into a closed-ended cylinder that can be picked up, in contrast to a taco, where the tortilla is simply folded around the fillings. 
it’s really filling because usually  contain rice and meat.

Taco

Mexican dish consisting of a corn or wheat tortilla folded or rolled around a filling. A taco can be made with a variety of fillings, including beef, pork, chicken, seafood, vegetables, and cheese, allowing great versatility and variety. Tacos are generally eaten without utensils, often garnished with salsa, chili pepper, avocado, guacamole, cilantro (coriander), tomatoes, onions, and lettuce.

Quesadilla

is a tortilla that is filled with cheese and then grilled. Traditionally, a corn tortilla is used, but it can also be made with a flour tortilla, particularly in northern Mexico and the United States. Other ingredients are often added, such as savoury mixes of spices or vegetables, before the quesadilla is cooked on a griddle.

Margarita

A margarita is a cocktail consisting of tequila, orange liqueur, and lime juice often served with salt on the rim of the glass. The drink is served shaken with ice, blended with ice, or without ice.

Mojito

Traditionally, a mojito is a cocktail that consists of five ingredients: white rum, sugar, lime juice, soda water, and mint. Its combination of sweetness, citrus, and mint flavors is intended to complement the rum, and has made the mojito a popular summer drink.