Making French Onion Broccoli Cheese Casserole is a breeze! Follow these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Broccoli: Steam the broccoli florets until tender but still bright green, about 4-5 minutes. Drain and set aside.
3. Sauté Onions: In a skillet over medium heat, add olive oil. Sauté the sliced onion until softened and golden brown, about 8-10 minutes.
4. Mix Ingredients: In a large bowl, combine the French onion dip, half of the cheddar cheese, garlic powder, and cooked broccoli. Add sautéed onions and mix well.
5. Transfer to Casserole Dish: Pour the mixture into a greased 9×13-inch casserole dish. Spread evenly.
6. Add Cheese: Top the mixture with the remaining cheddar cheese and mozzarella cheese. Sprinkle grated Parmesan cheese on top for added flavor.
7. Prepare Topping: In a small bowl, mix crushed buttery crackers with a drizzle of olive oil. Sprinkle this mixture evenly over the cheese layer.
8. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes or until the cheese is bubbly and golden brown.
9. Cool: Once done, remove from the oven and allow to cool for a few minutes before serving.