This oven baked 3-ingredient beef Clayton is the kind of vintage potluck recipe that earns a permanent spot in the dinner rotation because it is simple, dependable, and surprisingly full of flavor for so little effort. Recipes like this became popular in the 1970s for a reason: a few pantry staples, a budget-friendly cut of beef, and the oven doing most of the work made them perfect for busy households, and it still fits just as well into a packed weeknight now.
Serve these glossy, savory beef bites over mashed potatoes, buttered egg noodles, or steamed rice to catch all the sauce. For a potluck-style plate, add green beans, roasted carrots, or a crisp salad on the side, and if you want to lean into the cozy fall feel, warm dinner rolls make a great addition for scooping up every last bit from the dish.
Oven Baked 3-Ingredient Beef Clayton
Servings: 6
Ingredients
2 pounds beef stew meat, cut into bite-size pieces
1 envelope dry onion soup mix, about 1 ounce
1 can condensed cream of mushroom soup, 10.5 ounces
Directions
1. Preheat the oven to 325°F and lightly grease a 9x13-inch glass baking dish.
2. Place the beef stew meat in the baking dish, then add the dry onion soup mix and condensed cream of mushroom soup. Stir until the beef is evenly coated.
3. Cover the dish tightly with foil and bake for 2 hours, stirring once about halfway through, until the beef is tender and the sauce is bubbling.
4. Remove the foil, stir well, and let the beef rest for 5 minutes before serving so the sauce can settle slightly.
5. Spoon the beef and sauce over mashed potatoes, noodles, or rice and serve warm.
Variations & Tips
Slow Cooker Option: If you want to prep this earlier in the day, combine everything in the slow cooker and cook on low for 6 to 8 hours or on high for 3 to 4 hours, until the beef is tender.
Sauce Consistency: If you like a looser sauce for serving over rice or noodles, stir in 1/4 to 1/2 cup water before baking. For a thicker finish, uncover the dish for the last 15 minutes of baking.
Best Cut of Beef: Stew meat works well, but chuck roast cut into cubes is often even better because it gets especially tender and flavorful during the long bake.
Make It a Meal: You can add sliced mushrooms or small onion wedges to the baking dish for a more complete one-pan dinner, but keep in mind that the classic version really is just three ingredients.
Meal Prep Tip: Leftovers reheat well for lunch the next day. Store them in an airtight container in the refrigerator for up to 3 days, and add a splash of water when reheating if the sauce has thickened too much.