Cheat's Cheesy Chipotle Beef Tacos

• In a large frying pan, heat a drizzle of olive oil over medium-high heat. Cook sliced onion until tender, 3-4 minutes. Add cook beef strips and Mexican fiesta spice blend, stirring, in batches until browned and cooked through, 1-2 minutes. Remove from heat and stir in mild chipotle sauce and the butter. TIP: Cooking the meat in batches over a high heat helps it stay tender.

• In a large bowl, combine mixed salad leaves (see ingredients), tomato, a drizzle of white wine vinegar and olive oil. Season to taste. • Microwave mini flour tortillas on a plate in 10 second bursts until warmed through.