Step 1Steam the broccoli until tender, about 10 minutes. Set aside.
Step 2Heat the oven to 375 degrees.
Step 3Combine the soup, eggs, cheese, onion, mayonnaise and chicken.
Step 4Place half of the broccoli in a 9-inch-square baking pan or casserole dish and pour half the soup mixture over the top. Layer the remaining broccoli over the top, then pour the rest of the soup mixture over it to form 2 layers.
Step 5Bake until golden brown, 35 to 40 minutes.