Start by heating 3 tablespoons of olive oil in a large skillet over medium-high heat. Allow the oil to warm up for about a minute until it shimmers.
Add the diced chicken breasts to the skillet. Cook for about 5 minutes, stirring occasionally, until the chicken is golden brown and cooked through.
Once the chicken is cooked, add the broccoli and zucchini to the skillet. Stir everything together and let it cook for another 3-4 minutes until the vegetables are tender yet still vibrant.
Sprinkle the Hidden Valley Original Ranch Salad Dressing & Seasoning Mix over the chicken and vegetables. Stir well to ensure everything is evenly coated.
Pour in the 2 tablespoons of lemon juice and toss in the fresh spinach leaves. Cook for an additional minute or until the spinach is wilted and bright green.
Remove the skillet from the heat and serve your Easy 15-Minute Ranch Chicken and Vegetable Skillet warm.