Preheat your oven to 400°F and line a baking sheet with parchment paper.
Season the chicken breast with olive oil, dried oregano, garlic powder, sea salt, and black pepper.
Roast the chicken for 20 to 25 minutes until the internal temperature reaches 165°F, then let it rest for 5 minutes before slicing into strips.
Place the egg in a small saucepan, cover with water, bring to a boil, then remove from heat and let sit covered for 10 minutes before cooling and peeling.
Slice the cucumber into thin rounds and the red bell pepper into long strips.
Assemble your bistro box by arranging the sliced chicken, halved egg, cucumber, peppers, cherry tomatoes, hummus, and crackers in separate compartments.