INGREDIENTS
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1/4 c. Chopped red onion
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1/4 c. chopped pitted green olives
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1/4 tsp. chili flakes
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1 tbsp. lemon juice
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3 tbsp. olive oil
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1 1/4 lb. skirt steak, cut into four pieces
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1 tsp. oregano
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kosher salt
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Black pepper
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8 c. baby spinach (10 oz.)