In a small bowl, mix BBQ sauce with cheese wedge until blended. Lay tortilla flat and spread BBQ-cheese mixture on one half. Top mixture with remaining ingredients. Spray a grill or grill pan with nonstick spray and bring to medium-high heat. Lay the half-loaded tortilla on the grill/grill pan, and cook for 2 minutes. Using a spatula, fold the bare half of the tortilla over the filling and press lightly to seal. Carefully flip and cook until crispy, about 3 minutes. Slice into wedges and eat up!