Some of the best comfort food recipes are also the simplest. This Easy 3-Ingredient Slow Oven Beef Roast with Onions transforms an inexpensive chuck roast into an incredibly tender, flavorful meal using just three everyday ingredients. As the beef slowly roasts, the onions soften and caramelize while the dry onion soup mix blends with the natural juices to create a rich, savory gravy—all without complicated techniques or extra preparation.
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Perfect for Sunday dinners, family gatherings, or meal prepping for the week, this recipe proves that patience in the oven is all you need for a hearty homemade roast.
Why You’ll Love This Recipe
Only three simple ingredients.
Minimal preparation with no searing required.
Slow baking creates fork-tender beef.
Rich homemade onion gravy develops naturally.
Perfect for family meals and leftovers.
Oven-Baked 3-Ingredient Beef and Onion Roast
Servings: 6–8
Ingredients
3–4 pounds boneless beef chuck roast
3 large yellow onions, thinly sliced
1 (1-ounce) packet dry onion soup mix
Instructions
Step 1: Preheat the Oven
Preheat your oven to 300°F (150°C).
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