Heat up a large skillet on high. Add oil to hot skillet. You want it really hot here to brown or "sear" the beef quickly.
Take a paper towel and make sure you dry both sides of the pot roast. Season with a little bit of salt and pepper. Once the skillet is nice and hot, add the roast.
Using tongs, flip the meat over and sear the other side of the roast for another 2-3 minutes.
Transfer meat to slow cooker. Sprinkle packets of dry ranch dressing and onion soup mixes over pot roast.
Top with a stick of butter then place peppers on and around roast.
Cover and cook on low for 8 hours.
After it has cooked, take two forks and start shredding the meat. Discard any big fatty pieces. Then serve.
Video
Notes
If you prefer, you can cut up the peppers and stir those into the meat mixture for an extra kick of flavor.
Do not rush this recipe. Do not cook on high. This will only work when cooked slowly on low.
If you are sensitive to sodium, you could use unsalted butter for this. Be sure to use butter and not margarine. Margarine is basically oil so only use the real stuff.
Rump roast or sirloin tip will also work in this recipe.