Begin by combining the ingredients for your chicken marinade in a small mason jar. Shake together and set aside.
Cut up the chicken breast into 2-inch pieces and set aside in a small bowl.
Pour half of the marinade over the chicken and stir so it’s evenly coated. Set the other half aside to use as a dressing for the pasta.
Chop and prepare all your veggies. Dice the onion, mince the garlic, and chop the zucchini and tomato into a rough dice.
In a heavy bottomed large pot or dutch oven, warm the olive oil and add the onions and cook until softened.
Add garlic, zucchini, and tomato and cook for 3-5 minutes.
At this stage, start cooking the marinated chicken in a separate, preheated skillet until cooked through (165 degrees F). Remove from heat and set aside.
Meanwhile, pour the orzo into the pot with the vegetables with one cup of broth, oregano, and some salt and pepper. Stir regularly with the stove on medium low heat until the orzo has soaked up most of the broth, then add another cup of broth. Continue stirring and adding broth (or additional water, if needed) until the orzo is cooked through al dente - about 15-20 minutes to cook.
At this stage, taste the dish and adjust for seasoning. Add salt, pepper, and olives.
When ready to serve, top the pasta with chicken, extra olives, a drizzle of the reserved marinade, and a generous crumble of feta cheese. Enjoy!