Beef and Vegetable Fajitas

Could we come up with a weeknight fajita recipe that didn’t require us to fire up the grill? Here’s what we discovered:

Test Kitchen Discoveries

• To warm the tortillas, stack them on a plate, wrap the plate with plastic, and microwave on high power for about 1 minute.
• Make sure the pan is properly preheated before adding the steak. Heat a heavy-bottomed skillet over medium-high heat with a little vegetable oil until the oil smokes. The smoke indicates the pan is hot enough. Cooking steaks in a pan that isn’t properly preheated leads to steaks that overcook before they develop a good crust.