To make this lemon chicken sheet pan dinner, you start by preheating your oven to 400 degrees and spraying a large baking sheet pan with non stick spray. Set aside.
In a bowl, add eggs, lemon pepper seasoning, lemon juice, parsley and salt. Whisk to combine. In a separate bowl, add the Parmesan, lemon pepper and Panko breadcrumbs and stir to combine.
Dredge both sides of the chicken breasts through the egg mixture, then the breadcrumb/Parmesan mixture, lightly pressing to make sure your chicken is completely covered.
In a large skillet, add vegetable oil and heat over medium high heat. Once heated, add 2 or 3 pieces of chicken to the vegetable oil and fry chicken for 3-4 minutes on each side or until lightly browned. When both sides have been cooked, remove chicken to the prepared baking sheet pan.
While your chicken is cooking, quarter the baby potatoes and add to a medium sized bowl. Add 2 tablespoons of melted butter to the bowl along with 2 teaspoons of Cajun seasoning. Toss to coat and then add your potatoes to your sheet pan next to the chicken. Bake for 20 minutes.
While your chicken and potatoes are in the oven, remove the woody ends of your asparagus by gently bending your asparagus stalks and letting them break naturally. Discard the thick ends and then chop your asparagus in one inch pieces and add them to the same bowl you used for your potatoes. Add 2 tablespoons of melted butter and fresh garlic. Toss to coat.
After the 20 minutes of oven baking your chicken are done, remove pan and add the asparagus. Return to the oven for another 10 minutes. When done, remove from oven and sprinkle with a squeeze of fresh lemon and a bit of fresh chopped parsley (optional). Serve immediately.