Sirloin Steak Casserole

Tender, flavorful, and utterly satisfying, this Sirloin Steak Casserole is the perfect comfort food for any occasion. Featuring succulent cubes of seared sirloin steak, hearty vegetables like carrots, celery, and mushrooms, and creamy diced potatoes, it’s all brought together with a rich, velvety sauce infused with tomato paste, Worcestershire sauce, and fresh thyme. Topped with gooey melted cheddar cheese and baked to perfection, this casserole truly hits the mark for a crowd-pleasing dinner. Ideal for family meals or potlucks, this one-pan dish minimizes cleanup while delivering maximum flavor. Garnish with fresh parsley for a touch of brightness, and serve up the ultimate comfort classic today.

Nutriscore Rating: 73/100

Prep Time:20 mins

Cook Time:90 mins

Total Time:110 mins

Servings: 6

Ingredients

• 1.5 pounds sirloin steak
• 1 teaspoon salt
• 1 teaspoon black pepper
• 2 tablespoons olive oil
• 1 large onion
• 3 count garlic cloves
• 3 medium carrots
• 2 count celery stalk
• 8 ounces mushrooms
• 2 tablespoons all-purpose flour
• 2 cups beef broth
• 2 tablespoons tomato paste
• 1 tablespoon Worcestershire sauce
• 2 teaspoons fresh thyme
• 4 medium potatoes
• 1 cup shredded cheddar cheese
• 2 tablespoons parsley (optional, for garnish)

Directions

Step 1

Preheat your oven to 350°F (175°C).

Step 2

Pat the sirloin steak dry with paper towels and season both sides with salt and pepper.

Step 3

Cut the steak into bite-sized cubes, about 1 inch each.

Step 4

Heat 1 tablespoon of olive oil in a large skillet over medium-high heat. Sear the steak cubes in batches for 2-3 minutes per side, until browned. Transfer the steak to a plate and set aside.

Step 5

Chop the onion, mince the garlic, slice the carrots and celery, and quarter the mushrooms.

Step 6

In the same skillet, add the remaining tablespoon of olive oil and sauté the onions for 3-4 minutes, until softened.

Step 7

Add the garlic, carrots, celery, and mushrooms to the skillet. Cook for another 5-7 minutes, stirring occasionally.

Step 8

Sprinkle the flour over the vegetables and stir well to combine. Cook for 1-2 minutes to eliminate the raw flour taste.

Step 9

Gradually add the beef broth to the skillet, stirring constantly to create a smooth sauce.

Step 10

Stir in the tomato paste, Worcestershire sauce, and fresh thyme. Bring the mixture to a simmer.

Step 11

Peel and dice the potatoes into small cubes. Set aside.

Step 12

In a 9x13 inch casserole dish, combine the seared steak, vegetable mixture, and diced potatoes. Mix well to distribute evenly.

Step 13

Cover the casserole dish with aluminum foil and bake in the preheated oven for 60 minutes.

Step 14

Remove the foil and sprinkle the shredded cheddar cheese over the casserole. Return to the oven and bake uncovered for an additional 10-15 minutes, or until the cheese is melted and bubbly.

Step 15

Remove the casserole from the oven and let it cool for 5 minutes. Garnish with chopped parsley, if using, before serving.

Step 16

Serve hot and enjoy your delicious Sirloin Steak Casserole!

Nutrition Facts

Serving size	(2889.5g)

Amount per serving	% Daily Value*
Calories	3397.8

Total Fat 153.9g	0%
Saturated Fat 60.4g	0%
Polyunsaturated Fat 10.3g
Cholesterol 679.0mg	0%
Sodium 8182.2mg	0%
Total Carbohydrate 252.0g	0%
Dietary Fiber 32.7g	0%
Total Sugars 40.4g
Protein 261.2g	0%

Vitamin D 54.4IU	0%
Calcium 1277.5mg	0%
Iron 30.7mg	0%
Potassium 9357.9mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 40.3%

Protein: 30.4%

Carbs: 29.3%