Preheat the oven to 350°F. Spray a 12 x 8 inch baking dish with cooking spray. Set aside.
In a medium saucepan, saute 1/2 cup of chopped onion in 1 Tbsp butter until translucent. Add package of rice pilaf using enclosed flavor packet and amount of water called for on package. Cook according to package directions until tender and liquid is absorbed. Fluff with a fork and set aside.
In a medium size mixing bowl, whisk together the cream of celery soup, cheddar cheese soup, 1/2 cup of mayonnaise, evaporated milk, granulated garlic, salt and black pepper.
Add the cooked rice. steamed broccoli florets 1 1/2 cups cheddar cheese and 1/2 cup Parmesan cheese. Mix well and pour into baking dish.
Sprinkle with the remaining 1 cup of shredded cheese and top with crushed french fried onions.
Bake at 350°F for 35-40 minutes or until bubbly and golden.
Let stand 5 minutes, then serve.
Notes
This dish works very well with lighter dairy products. 2 % shredded cheese, light mayo and margarine, 2 % evaporated milk will all yield tasty results.
Transform this into a main dish by adding 2-3 cups chopped chicken, 1 pound of cooked and crumbled ground beef or Italian sausage.