Classic Ground Beef & Onion Casserole

Warm, comforting, and simple this Classic Ground Beef & Onion Casserole is a timeless family favorite perfect for busy weeknights. With rich layers of seasoned ground beef, tender onions, and a golden-baked finish, it’s the ultimate cozy dinner that requires minimal prep. Ideal for Easy Hamburger Meat Recipes, Ground Beef Casserole Recipes, and Dinner Ideas With Ground Beef fans who love savory, hearty meals.

Table of Contents

Table of Contents

4 Reasons Why You’ll Love It

1. Simple pantry ingredients
2. Comfort food classic
3. Family-friendly flavors
4. Perfect make-ahead meal

Time Breakdown

• Prep Time: 10 minutes
• Cook Time: 35 minutes
• Total Time: 45 minutes
• Servings: 4 people

Ingredients List

• 1 lb ground beef (lean preferred)
• 1 large yellow onion, thinly sliced
• 2 cloves garlic, minced
• 1 cup beef broth
• 1 cup breadcrumbs
• 2 eggs, lightly beaten
• 1 tbsp Worcestershire sauce
• 1 tsp salt
• ½ tsp black pepper
• 1 tsp dried thyme
• 1 tbsp olive oil (for sautéing)

Kitchen Tools You’ll Need

• Large skillet or frying pan
• Sharp knife
• Cutting board
• Measuring cups & spoons
• Mixing bowl
• Wooden spoon or spatula
• Oven-safe baking dish

How to Make Step-by-Step

Step 1: Sauté the Onions

Heat olive oil in a large skillet over medium heat. Add sliced onions and cook for 5 minutes until translucent and lightly golden.

Step 2: Brown the Beef

Add ground beef and minced garlic to the skillet. Cook for 7–8 minutes until beef is browned and crumbly. Drain excess fat if needed.

Step 3: Season and Mix

Stir in Worcestershire sauce, salt, pepper, and thyme. Let cook 2 more minutes for flavors to blend.

Step 4: Prepare the Casserole Base

In a mixing bowl, combine breadcrumbs, beaten eggs, and beef broth. Add the cooked beef-onion mixture and stir to combine.

Step 5: Bake Until Set

Transfer to a greased baking dish. Bake at 375°F (190°C) for 25–30 minutes until firm and lightly browned on top.

Step 6: Serve and Enjoy

Let rest for 5 minutes before serving. Slice into squares and serve warm with green beans or a side salad.

Variations to Try

• Add chopped mushrooms or bell peppers for extra texture.
• Swap breadcrumbs for mashed potatoes on top for a cottage pie twist.

Storage Tips

• Store leftovers in an airtight container in the fridge for up to 4 days.
• Reheat in the oven at 350°F until warmed through.
• You can also freeze portions for up to 2 months; thaw overnight before reheating.

Pro Tips

• Use lean beef to avoid excess grease.
• Add a splash of broth when reheating to keep it moist.
• Perfect for batch cooking and weekly meal prep.
• Great with a drizzle of gravy or ketchup for serving.

Nutrition Facts

• Serving Size: 1 plate
• Calories: 375
• Protein: 27g
• Carbohydrates: 14g
• Fat: 22g
• Fiber: 1g
• Sugar: 2g

Disclaimer: Nutrition facts are estimated using online tools and may vary based on your ingredients and preparation. Please consult a nutritionist for precise dietary advice.

FAQs

Can I make this ahead of time?
Yes! Assemble the casserole up to a day ahead and refrigerate. Bake before serving.

Can I use ground turkey instead of beef?
Absolutely, just reduce cooking time slightly since turkey cooks faster.

Why is my casserole watery?
Make sure to drain any excess fat from the beef before mixing.

Can I freeze the cooked casserole?
Yes, it freezes well for up to 2 months. Reheat from thawed for best texture.

Closing Notes

This Classic Ground Beef & Onion Casserole is the definition of simple comfort. With its rich, savory layers and minimal prep, it’s a go-to recipe for any busy evening. Serve it with your favorite sides or enjoy it on its own for a wholesome, satisfying meal. Perfect for anyone who loves hearty, nostalgic dishes that never fail to please.