One of my favorite fast food places is Taco John's. They recently quit serving their Shrimp Street Tacos which were super! I found this recipe and it claimed to be similar. Let's hope so! (It sounds good anyway!)
1In a small bowl, whisk together the flour and chipotle powder with a fork. Season the mixture with salt and pepper, and set aside. Rinse and dry shrimp. Place in a large bowl, and toss with the flour mixture until all of the shrimp is thoroughly coated. You might have a bit of flour mixture left over.
2In a large skillet over medium heat, melt the butter with the oil. Cook the shrimp for 3-4 minutes, until cooked through and opaque.
3While your shrimp are cooking, place the chipotle peppers, adobo sauce, and lime juice in the bowl of a mini-food processor. (I use an immersion blender.) Puree until smooth, and fold mixture into the greek yogurt. Season to taste with salt. (Use less of the chipotle/adobo if you don't like it hot!)
4As soon as your shrimp are done, remove from heat and assemble your tacos, garnishing with shredded cabbage, sliced jalapenos, chopped avocados and as much of the Chipotle-Lime sauce as you’d like.