Peppers, Onions and Sausage Hoagies

1 TBS olive oil
1 lb. smoked sausage, sliced into quaters and then lengthwise
1 red bell pepper, sliced
1 yellow bell pepper, sliced
1 orange bell pepper, sliced
2 medium yellow onions, sliced
3 garlic cloves, minced
2 TBS tomato paste
1 cup beer
1/2 bbq sauce
4 hoagie rolls

Heat olive oil in large skillet over medium heat. Add sausages and brown on all sides, about 7 minutes. Remove from skillet.
Add onions and peppers to the skillet and saute until tender and golden brown, about 6 minutes. Add garlic and saute until fragrant. Stir in tomato paste, beer and BBQ sauce. Cook for a few minutes and then add the sausages back to the pan. Reduce heat and simmer until the sauce is thick.
Slice bread open and add sausage mixture.