Preheat your oven to 375°F.
Cook the whole wheat pasta according to package directions until al dente; drain and set aside.
Season the chicken breast lightly with garlic powder, salt, and pepper. In a non-stick skillet, heat olive oil over medium heat and lightly sear the chicken for about 3 minutes on each side until just browned. Remove and dice into bite-sized pieces.
Cut broccoli into florets, drizzle a little olive oil, and season with garlic powder, salt, and pepper. Roast in the oven on a baking sheet for about 12-15 minutes until tender and slightly charred.
In a small saucepan, whisk together whole wheat flour and 2% milk over medium heat to form a roux. Gradually stir in shredded Cheddar until a smooth, creamy sauce forms. Remove from heat.
In a large bowl, combine the cooked pasta, diced chicken, roasted broccoli, and cheese sauce. Mix well.
Transfer the mixture into a lightly greased baking dish and bake in the oven at 375°F for 10-12 minutes until heated through and bubbly.
Serve warm and enjoy your nutritious, balanced meal.