1. Preheat the oven to 375°F (190°C).

2. Cook the broccoli in boiling salted water for about 3-4 minutes until tender. Drain and set aside.

3. In a large skillet, heat some oil over medium heat. Add the pepperoni and cook until crispy. Remove the pepperoni from the skillet and set aside.

4. In the same skillet, add the tuna and cook for a few minutes until heated through. Remove from heat.

5. In a saucepan, melt some butter over medium heat. Stir in flour to make a roux. Cook for about 2 minutes, stirring constantly.

6. Gradually whisk in the cream until smooth. Bring to a simmer and cook for 2-3 minutes until thickened.

7. Stir in the cheddar cheese until melted and smooth.

8. Add the cooked tuna, drained chick peas, cooked broccoli, and crispy pepperoni to the saucepan. Season with salt and pepper to taste. Stir well to combine.

9. Transfer the mixture to a greased baking dish.

10. Bake in the preheated oven for about 25-30 minutes until bubbly and golden on top.

11. Remove from the oven and let it cool for a few minutes before serving.

12. Enjoy your creamy tuna casserole with cheddar cheese, chick peas, broccoli, and pepperoni!