You bet. Classic Plan and Family Plan customers can select between 2 and 6 meals per week for either 2 or 4 people.
As an existing HelloFresh Customer, you can change the number of meals and serving size you get here
Customers can also simply add more meals from any menu page just for a given week by clicking on the "add extra meal" button:
If you are not yet a HelloFresh customer, follow the instructions listed here