Preheat oven to 350ºF. Spray a casserole dish or 9x13" dish with cooking spray and set aside.
In a large skillet over medium heat, warm olive oil and add frozen Beyond Meat Beefy Crumble. Stir until all big pieces are separated and warmed through.
Add in drained green beans and condensed tomato soup. Stir together and season with salt and pepper if necessary.
Pour mixture into casserole dish and top with mashed potatoes. Spread mashed potatoes in an even layer and top with cheese. (Tip: press potatoes against edges of the dish to prevent it from boiling over the sides.)
Place in preheated oven and bake for about 30 minutes, or until heated through and cheese is melted on the top.
Take out from oven and let sit for a few minutes. Serve up on plates and enjoy! Great served with a side salad!