Preheat your oven to 350°F (175°C).
In a large mixing bowl, combine all chopped vegetables.
Drizzle olive oil over the vegetables and season with salt and pepper.
Mix until vegetables are well coated with oil and seasoning.
In a separate bowl, combine the cream of mushroom soup and half of the shredded cheese.
Add this mixture to the vegetables and stir until evenly distributed.
Transfer the vegetable mixture into a greased baking dish.
Top with remaining cheese and sprinkle breadcrumbs evenly over the top.
Bake in the preheated oven for about 30 minutes, or until golden brown.
Let it cool for a few minutes before serving.