Learn Hardcore Spanish (Latin America): ¿Dónde almuerzas cuando tienes mucho trabajo en la escuela? - Where do you have lunch when you have a lot of work at school?

In many Spanish-speaking countries, almorzar specifically refers to having lunch, while comer can be more general (to eat in any context). Using almuerzas clarifies that you are talking about midday lunch.

Why is there no accent on cuando here?

Cuando without an accent is used as a conjunction meaning when in statements. Cuándo (with an accent) is used only in direct or indirect questions. In this sentence, cuando introduces a condition or scenario, so it does not have an accent.

How do I conjugate almorzar in the present tense?

Almorzar is a stem-changing verb (o → ue) in the present tense. For example:

Yo almuerzo
Tú almuerzas
Él/Ella/Usted almuerza
Nosotros almorzamos
Vosotros almorzáis (Spain)
Ellos/Ellas/Ustedes almuerzan

Why do we say tienes and not tengas in this sentence?