Cheesy Breakfast Potatoes with Crispy Bacon

potatoes, (peeled, diced into small pieces)

green bell pepper, (diced small)

onions, (chopped)

garlic, (minced)

vegetable oil, (might need more)

salt, (more or less to taste)

pepper

cheddar cheese, (grated)

pieces of Applewood bacon, (crumbled into small pieces)

Optional: (sour cream for topping)