Heat olive oil in medium size skillet over medium high heat.
Add onions, sautée until soft and translucent
Add sausage to pan, sir and brown.
Stir in RO*TEL Original and black beans, add tomato paste to thicken a bit.
Reduce heat to low, stir occasionally allow remaining liquid to reduce..
Using serrated knife, carefully cut tops off from hard rolls. Use table fork to gently scrape out insides of each roll to create a bowl. Reserve leftover tops and inside of rolls for breadcrumbs for later use (optional kitchen hack.)
Place bread bowls on a large cookie sheet.
Fill each bowl with with RO*TEL and sausage mixture.
Top each bread bowl with Parmesan cheese.
Place in oven and bake 8 - 10 minutes. Remove from oven, garnish with optional Italian parsley if desired.
If you don't have sausage, you can substitute it for ground beef, chicken, or turkey.