Dice the chicken breast into 1-inch bite-sized pieces and season with sea salt and black pepper.
Chop the zucchini, bell pepper, and red onion into uniform pieces for even cooking.
Heat the olive oil in a large skillet over medium-high heat until shimmering.
Add the chicken to the skillet and cook for 5-6 minutes, stirring occasionally, until golden brown and cooked through.
Remove the chicken from the pan and set aside on a plate.
In the same skillet, add the onion and bell peppers, sautéing for 3-4 minutes until they begin to soften.
Add the zucchini, minced garlic, rosemary, and thyme, and cook for another 3-5 minutes until the vegetables are tender but still vibrant.
Return the chicken to the skillet, toss everything together to combine the flavors, and serve immediately.