Step 1: Preheat your oven to 400°F (200°C).
Step 2: On a baking sheet, toss the trimmed asparagus spears with olive oil, a sprinkle of salt, pepper, and the bright zest of one lemon. Spread them out in a single layer so they can roast evenly.
Step 3: Pop the baking sheet into your preheated oven and roast for approximately 10-12 minutes, or until tender with a slight crispness.
Step 4: While your asparagus is roasting, heat 2 tablespoons of unsalted butter in a large skillet over medium-high heat. Add your bite-sized chicken pieces, seasoning them with salt and pepper. Cook for about 5-7 minutes, stirring occasionally, until they’re beautifully browned and cooked all the way through.
Step 5: Reduce the heat to medium. Add the remaining 2 tablespoons of butter, the minced garlic, and the dried thyme to the skillet. Sauté for another 2-3 minutes, stirring constantly, until the garlic is wonderfully fragrant but takes care not to burn it.
Step 6: Stir in the fresh lemon juice, mixing it thoroughly with the chicken and garlic butter sauce. Remove the skillet from the heat immediately.
Step 7: Plate your delicious garlic butter chicken bites alongside the roasted lemon asparagus. For a vibrant finish, garnish with freshly chopped parsley.