Slice the chicken breast into 1-inch bite-sized pieces and season evenly with the sea salt, black pepper, and dried oregano.
Heat the extra virgin olive oil in a large skillet over medium-high heat until shimmering.
Add the chicken pieces to the skillet and sear until golden brown and cooked through, approximately 5 to 6 minutes.
Remove the cooked chicken from the skillet and set it aside on a plate.
In the same skillet, add the sliced zucchini and trimmed asparagus, sautéing for 3 to 4 minutes until they are tender-crisp.
Stir in the minced garlic and halved cherry tomatoes, cooking for another 2 minutes until the tomatoes begin to soften and the garlic is fragrant.
Return the chicken and any accumulated juices to the skillet, drizzle with fresh lemon juice, and toss everything together to combine.
Garnish the dish with chopped fresh parsley and serve immediately while hot.