Preheat your oven to 450ºF and bring a pot of salted water to a boil.
Heat a Dutch oven or large braising pan over medium-high heat with 1 tablespoon of olive oil. Add the ground chicken and brown one side for 3-4 minutes until golden brown before breaking apart and adding the diced onion. Cook for another 5-6 minutes until the onions have softened and the chicken is fully cooked.
Add the pasta sauce and chicken broth to the pan and stir everything together. Bring to a simmer until ready to serve.
Toss the zucchini with the olive oil, grated parmesan, garlic powder, and black pepper. Transfer to two half sheet pans in an even layer. Bake for 15 minutes with one sheet pan on the top rack, and one sheet pan on the middle rack before swapping and baking an additional 10-15 minutes until golden brown.
Add the orzo to the boiling water and cook for 12-14 minutes until just tender. Drain and serve while warm.
To assemble each bowl, add 1 cup of cooked orzo, about 7 ounces of chicken, and about 75 grams of roasted zucchini.
Garnish with freshly grated parmigiano reggiano or a dollop of ricotta cheese, fresh basil or herbs, Calabrian chiles, and a squeeze of fresh lemon, if desired.