My easiest is sirloin roast, sprinkle with garlic powder, salt, pepper add diced onions and water. Cook for 2-3 hours on high, add potatoes and carrots. Cook for another 2 hours or so on high. Done.
I use my crockepot to make beef stew, chicken soup and chili. I brown nothing. Beef stew I dredge in flour and then just throw it in with seasonings, water, Ro-tel and tomato puree. I then add potatoes, carrots, frozen corn and peas. Cook for several hours on high. I do use sirloin strips that I cut into pieces. Sirloin is so tender. For chicken soup, I use chicken broth and tomato puree and let it all cook. For chili, I put the hamburger in, breaking it up, pour water and the seasonings and tomato sauce, Ro-tel tomatoes and stir. Stirring breaks up the meat as does cooking it in the crockpot. It softens the meat and it's easy to break into smaller pieces. I add the beans and thicken with corn starch and let it simmer away.
It's a fallacy that you have to brown meat before putting it in a crockpot. It turns our great without the extra step and time of browning.
I actually have 3 crockpots. The smallest is the one I got as a wedding present in 1981. It still works fine. The next one is bit bigger and the largest one is digital and I can set it to turn on after a certain amount of time.