Prep the veggies: Finely chop the vegetables. For extra softness, sauté them in a splash of oil for 3–4 minutes until tender.
If using broccoli, steam it first and chop it very small.
Warm the chicken: If using leftover or rotisserie chicken, chop it fine. Mix with a pinch of garlic powder, onion powder, salt, and pepper. Keep the seasoning mild.
Assemble the quesadillas: Lay out 4 tortillas.
Sprinkle a thin, even layer of cheese on each. Add a small handful of chicken and a light sprinkling of veggies. Top with another layer of cheese (this helps everything stick) and place a tortilla on top.
Heat the pan: Warm a large nonstick skillet over medium heat.
Add a little oil or butter and swirl to coat.
Cook the first side: Place one quesadilla in the pan. Cook for 2–3 minutes until the bottom is golden and the cheese begins to melt.
Flip gently: Use a wide spatula to flip. Cook another 2–3 minutes until the tortilla is crisp and the cheese is fully melted.
Repeat: Transfer to a cutting board and let it rest for 1 minute before slicing into wedges.
Repeat with remaining quesadillas, adding a bit more oil or butter as needed.
Serve with dips: Offer a small side of yogurt or sour cream, mild salsa, or guacamole. Keep portions small and familiar to avoid overwhelm.