Fry the bacon according to package directions (I go for crispy on this one). Drain on a paper towel lined plate and crumble or chop into bite-sized pieces.Melt the butter in a small skillet over high heat. Add the asparagus, sprinkle with lemon pepper, and saute until golden brown and roasty-looking. I like the little charred pieces so I cooked it a little longer - you can cook for as long as you like depending on how you like your asparagus.Cut the chicken into bite-sized pieces. Layer the spinach, chicken, asparagus, and bacon. Cut the avocado into slices and scoop out with a spoon; arrange over the top of the salad. Drizzle or toss with the olive oil and balsamic vinegar. Top with fresh basil, salt and pepper.