Preheat the oven to 425°F (220°C). Line two large baking sheets with parchment paper.
Rinse the quinoa. Cook it in the water or broth for about 15 minutes until fluffy. Let it cool completely before storing.
Toss the broccoli and sweet potatoes with 2 tbsp olive oil, ½ tsp salt, and the black pepper. Spread them on one baking sheet.
Rub the chicken with 1 tbsp olive oil, ½ tsp salt, garlic powder, and paprika. Place it on the second sheet.
Roast the vegetables for 20–25 minutes, until tender and lightly browned. Bake the chicken for 20–25 minutes, until it reaches 165°F (74°C) inside. Let it rest for 5 minutes, then slice.
Whisk the vinaigrette ingredients together in a small jar.
Boil the eggs for 10 minutes, cool them in ice water, and peel them.
Divide the quinoa, chicken, broccoli, and sweet potatoes into 5 airtight containers. Keep the vinaigrette in a separate jar or small cup.
Build the snack packs in small containers: Greek yogurt with berries, carrot sticks with hummus, a hard-boiled egg, and a handful of nuts.
Cool everything fully, then refrigerate. Add the dressing just before eating.