Preheat oven to 400°F and line a baking sheet with parchment paper.
Peel and cube the sweet potato into 1/2-inch pieces, toss with olive oil and a pinch of salt, then roast for 10 minutes.
Place Goldfish crackers in a sealed bag and crush into fine crumbs using a rolling pin or heavy pan.
In a shallow bowl, combine the crushed crackers, parmesan cheese, garlic powder, sea salt, and black pepper.
In a separate bowl, whisk the egg until smooth.
Dip the chicken breast into the egg, then press firmly into the cracker mixture until evenly coated on all sides.
Add the chicken to the baking sheet with the potatoes and bake for 15-18 minutes until the chicken reaches 165°F and potatoes are tender.
While the chicken bakes, steam the broccoli florets in a steamer basket over boiling water for 5-6 minutes until bright green and tender.
Serve the crusted chicken with the roasted sweet potatoes and steamed broccoli.