Instant Pot Instructions:

1. Pour 1 ½ cups water into bottom of Instant Pot. Scatter the sliced potatoes into a steamer basket*. Drop the steamer basket into the Instant Pot. Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 1 minute. When time is up move valve to venting. Remove the lid. Set the steamer basket aside, discard the water in bottom of the pot. 
2. Turn Instant Pot to saute setting. When display says HOT add in the ground beef and break it up. Add in the onions and green peppers. Cook for about 7 minutes, until beef is cooked through and onions are soft. Drain off any excess grease.
3. Stir in the salt, pepper, garlic powder, smoked paprika, oregano, parsley, tomatoes, Worcestershire and tomato sauce. Simmer for 3 minutes.
4. Fold in the potatoes to coat in the sauce. If using cheese sprinkle it into the pot and let it melt.
5. Serve and enjoy!

Slow Cooker Instructions:

1. Brown the ground beef, onions, and green peppers in a skillet first to avoid excess grease in the slow cooker. Drain well.
2. Add to slow cooker. Stir in the potatoes, salt, pepper, garlic powder, smoked paprika, oregano, parsley, diced roma tomato, Worcestershire sauce, and tomato sauce.
3. Cover and cook on low for 4 hours or high for 2-3 hours, until the potatoes are tender.
4. About 15 minutes before serving, sprinkle the cheddar cheese over the top, cover, and let it melt.