Pat the beef roast completely dry with paper towels before seasoning. Removing excess moisture helps the meat develop a rich golden crust during searing instead of steaming in the pan. Season all sides generously with oregano, rosemary, paprika, and black pepper, pressing the seasonings gently into the meat so they stick well. Let the roast sit at room temperature for about 15–20 minutes while you prepare the vegetables. This helps the beef cook more evenly and creates better texture later.

Heat the olive oil in a large skillet over medium-high heat until the oil becomes hot and lightly shimmering. A properly heated skillet is important for building deep flavor in the roast. Carefully place the seasoned beef into the skillet and avoid moving it around too quickly. Letting the meat stay undisturbed helps create that beautiful browned crust that gives the finished pot roast its rich homemade flavor.

Sear the roast on all sides until deeply browned and caramelized. This step usually takes several minutes per side, so be patient and allow the crust to develop slowly. The beef does not need to cook fully at this stage because it will continue cooking in the slow cooker for several hours. Once all sides are browned, transfer the roast carefully to a plate and set it aside temporarily.

In the same skillet, add the sliced onions directly into the flavorful browned bits left behind from the beef. Cook the onions for several minutes, stirring occasionally, until they become soft, lightly golden, and fragrant. If the skillet looks dry, add a very small splash of olive oil to help prevent sticking. The onions should become tender and slightly sweet without burning.

Add the minced garlic to the skillet and stir continuously for about 30 seconds to 1 minute until fragrant. Be careful not to let the garlic brown too much because burnt garlic can create bitterness in the broth. At this point, the kitchen should smell incredibly warm and comforting from the garlic, herbs, onions, and beef together.

Slowly pour the beef broth into the skillet while gently scraping the bottom of the pan with a wooden spoon or spatula. This helps loosen all the flavorful browned bits from the skillet, which adds richness and depth to the final broth. Let the broth simmer gently for a minute or two so the flavors begin blending together.

Stir in the crushed tomatoes, tomato paste, turmeric, carrots, celery, and potatoes. Mix everything gently until the vegetables are evenly coated in the flavorful broth mixture. The tomato paste helps deepen the savory flavor while the turmeric adds subtle warmth and color without overpowering the dish.

Transfer the vegetable and broth mixture carefully into the slow cooker, spreading the vegetables evenly across the bottom. This creates a flavorful base that allows the roast to cook slowly and absorb all the Mediterranean-inspired flavors throughout the day.

Return the browned roast to the slow cooker and nestle it into the vegetables and broth. Spoon a little of the broth mixture over the top of the meat to help keep it moist while cooking. Cover the slow cooker tightly with the lid to trap heat and moisture properly.

Cook the pot roast on low for about 8 hours or until the beef becomes incredibly tender and easily pulls apart with a fork. Try not to open the lid too often during cooking because each time the lid is lifted, heat escapes and slows the cooking process. By the end of cooking, the vegetables should be soft and flavorful, and the broth should smell rich, savory, and comforting.

Sprinkle freshly chopped parsley over the finished pot roast right before serving for a burst of freshness and color. Serve the roast warm with plenty of the vegetables and broth spooned over the top. The beef should be tender, juicy, and deeply flavorful with cozy Mediterranean herbs in every bite.