In a large bowl, whisk the lemon juice, olive oil, garlic, oregano, paprika, salt, and pepper. Add the chicken and toss to coat. Allow to marinate for 20 minutes or up to 24 hours.
Preheat the oven to 400ºF and line a baking sheet with parchment paper. Spread the potatoes on the baking sheet, drizzle with olive oil and season with garlic powder, salt, and pepper and toss to combine. Bake for 30 minutes, or until golden brown, stirring once halfway through.
When ready to cook the chicken, heat a large skillet over medium high heat. Remove the chicken from the marinade, shaking off the excess, and place in the preheated pan (keep the marinade). Cook the chicken for 7-8 minutes on each side, or until golden brown and a thermometer reads 165ºF. Remove the chicken from the pan and let it rest for 5 minutes before slicing.
Add the zucchini to the bowl with the marinade and toss to combine. In the same skillet used to cook the chicken, add the zucchini with the marinade and cook on high heat, tossing occasionally until softened and lightly browned, 5-7 minutes. Season with salt and pepper.
Assemble four meal prep containers with the sliced chicken breast, zucchini, and potatoes.
Notes
Storage: This easy lemon garlic chicken meal prep will keep in the fridge for 4-5 days. To reheat, I recommend just using the microwave! It should take just a few minutes.