Heat olive oil in a pan.

Saute sliced onions and diced garlic in the oil for about 5 minutes, until slightly browned.

Add cooked rice to the pan and saute for an additional minute.

In a baking dish, combine the rice mixture with thawed broccoli.

In a separate saucepan, heat milk, cream of mushroom soup, Cheese Whiz, chicken stock, and butter.

Stir the ingredients continuously until they are well blended and smooth.

Pour the cheese sauce over the broccoli and rice mixture in the baking dish.

Cover the baking dish and bake at 350 degrees Fahrenheit (175 degrees Celsius) for 20 minutes.

Remove the cover and sprinkle seasoned bread crumbs and grated Romano cheese over the top.

Continue baking uncovered for an additional 10-15 minutes, or until the top is browned and the rice is tender.