You might think about assigning a project which requires students to plan a menu (or meal) and price out the menu items to determine costs using food costs and cost percentages.  This allows for the teaching of culinary math skills.  Assignments requiring students to modify recipes to decrease cost of ingredients could teach cost controls.  Some other assignments might include creating menus and pricing for those menus based on a given budget, googling restaurant menus and doing price comparisons based on menu item categories (appetizer, desserts, etc), or activities which emphasize application of cost percentages. 

My class is medical but this activity can apply to any area of study.  I like to do a class activity to help students appreciate the delicate nature of a language barrier.  I ask for two volunteers who can speak another language (other than english) and preferably two different languages, i.e. Korean and Spanish.  
One of the students is assigned a patient and the other a medical personnel (or other profession).  The students then attempt to communicate in their prospective languages.  This activity is a fun and interesting lesson as the students must be able to identify the needs of an individual with a language barrier.  The student get very involved in this activity and it helps them to build professional interpersonal skills to overcoming obsticles.