Tex-mex Skillet Supper Corn Bread

• 2 egg whites
• 1 onion
• 1/2 green pepper
• 1/2 bell pepper (red)
• 475 gr black beans
• 450 gr tomatoes (diced)
• 250 gr skim
• 120 gr cornmeal (yellow)
• 95 gr all purpose flour
• 55 gr canola