Turn crock pot on high.
Cut onions into large pieces and place on bottom of crock pot.
Place roast on top of onions.
Top with minced garlic, salt and pepper.
Add BBQ sauce and soup over roast.
Pour Rotel® over the top.
Cover and cook on high for 6-8 hours or low for 10-12 hours.
Remove from crock pot, remove fat, shred pork, and place back into crock pot until ready to serve.