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1
Trim the meat to remove any visible fat.
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2
In medium bowl, combine the salt, pepper, lime juice, garlic and minced onion.
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3
Transfer to a baking dish.
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4
Add the beef, cover and refrigerate.
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5
Marinate for at least 2 hours and up to 24 hours.
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6
When ready to cook, preheat a gas grill to high.
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7
If you are using a charcoal grill, build a fire and let it burn down until the coals are glowing red with a light coating of white ash.
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8
Spread the coals evenly.
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9
Clean the cooking grate.
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10
Grill the steaks for 7-8 minutes per side for medium doneness.
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11
Remove the steaks from the grill and allow them to cool about 5 minutes.
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12
Cut the steaks into 1/4-inch thick strips, being sure to cut across the grain, and on a slight bias.
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13
Set aside.
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14
In large saute pan, heat the olive oil over medium heat.
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15
Saute the peppers and onions for 5-7 minutes, or until they just begin to soften.
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16
Add the steak and cook until just heated through, about another 2-3 minutes.
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17
Meanwhile, grill or toast the tortillas until softened and warm, about 20 seconds per side.
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18
Serve the steak mixture with the tortillas and a variety of toppings such as cheese, sour cream, guacamole or salsa.