I want to transition from eating out for lunch every day to bringing a lunch from home. What lunch do you bring from home?

I work so I just take my hour lunch break and either get tacos, a chicken veggie bowl, or a chicken salad. All of those range between $8-10 . I'm effectively spending nearly $50 week on my work lunch, this doesn't take into consideration a lot of the time I eat out for dinner as well.

I avoid carbs and mainly focus on chicken. My family is vegetarian and they don't know I've started eating meat so I can't cook chicken at home. Salads are monotonous and boring. I want something fast I can make at home.