Cut the lemon into wedges and set aside. Heat a frying pan in medium heat, adding in asparagus and mini bell peppers. Sprinkle in olive oil, salt, and pepper and grill the vegetables. Set aside.
Heat vegetable oil in a frying pan and follow the package instructions to cook the yakisoba noodles. Place the noodles on a plate.
Melt butter in a frying pan and saute the chicken breast. Add in salt, pepper, basil, and lemon juice and cook the chicken in low heat.
Place the chicken from Step 3 to a plate. Add in the vegetables from Step 1 and garnish with sliced lemons. Squeeze the lemons before eating!