Season steak liberally with salt and pepper

Sear steak on medium high heat in butter and olive oil, do not overcook

Set aside

Add sliced bell pepper and onion to the pan

When veggies start to soften, sprinkle with the flour, cook for another 1-2 minutes

Slowly whisk in bullion broth, and simmer until sauce starts to thicken

Add tomato paste

Add steak back into sauce

Cover and let simmer for another 15-20 minutes

Serve over rice