In a large skillet, preferably cast iron, heat oil over medium-high heat. Add lamb, garlic and onion and let it all start to brown. Add paprika, chili powder, oregano, cumin, coriander, salt and pepper and stir well to combine.

Once the onions have melted down and the lamb is nice and brown, add sliced peppers and tomato paste. Continue cooking, stirring to coat the mixture with tomato paste. Keep stirring until the peppers start to melt down into the mixture, and everything is heated through.

To serve, pile some of the lamb/onion/pepper mixture into warmed tortillas. Add a dollop of sour cream and a sprinkling of green onions over top and dig in. Enjoy!