Traveling up Route 1 from Laurel to Baltimore, my car stopped when it saw a large roadside grill with a chimney and a handmade sign advertizing 'pollo asada, carnitas, carnes' (I think). This was just north of the intersection with Route 175.
I ordered beef, which was pulled out of a marinade and grilled over wood, and tasted GREAT. I think skirt steak. If you can speak Spanish, ask them not to keep flipping it, so it gets a better char; And order medium rare to get medium, or ask them to pull it off the grill when it looks done enough for you.
Open Saturday and Sunday (I think), on the south lane, steak was $10 for 2 pieces, plus small tacos, rice and beans and a little salsa: easily enough for 2 people. I think it is a mojito marinade: very citrusy, the meat was beefy and smoky and juicy and slightly spicy and... have I said enough to get you going? It makes pit beef seem like a dry leftover.
I'm looking for excuses to go there again.