Chevy's Fresh Mex San Antonio Veggies

Source: Chef Mike Fuller, Chevy's Fresh Mex, Phoenix, Arizona

2 tablespoons olive oil
2 cups yellow onions, thinly sliced
1 tablespoon Fuego Spice Mix
1 cup red bell peppers, thinly sliced
1 cup green bell peppers, thinly sliced

Heat a saut