Season steak with salt & pepper, then sear in the olive oil for 2 minutes, flipping once. (set aside)
Reduce heat. Melt butter and saute the garlic and onions in the skillet.
Once onions begin to soften, add in tomatoes, tomato paste and seasonings.
Let that cook for about 5 minutes while stirring frequently.
Then add in the black olives and steak to finish cooking for an additional 5-10 minutes.
Notes
Blanch tomatoes by lowering them in boiling water for 1 minute. Cool the blanched tomatoes in ice water, then peel away the skins.Additionally, use a 28 oz. can of whole peeled tomatoes as a substitute.