Protein-Packed Cottage Pie with beef, vegetables and golden mashed potato

Classic comfort food with an easy protein upgrade. This hearty cottage pie combines savoury beef mince, vegetables and creamy mashed potato, with unflavoured protein mixed through the filling.

It’s warm, filling and perfect for meal prep, while giving you another simple way to add extra protein to an everyday dinner.

Serves
4
Prep
20 minutes
Cook
35 minutes

Approx. macros per serve

Calories
~540 kcal
Protein
~47g
Carbs
~46g
Fat
~18g

Macros are an estimate only and will vary depending on the ingredients and unflavoured protein product used.

Ingredients

  • 500g lean beef mince
  • 1 brown onion, finely diced
  • 2 carrots, finely diced
  • 1 cup frozen peas
  • 2 tbsp tomato paste
  • 1 tbsp Worcestershire sauce
  • 1 cup beef stock
  • 2–4 scoops unflavoured collagen or protein powder
  • 1 tsp mixed herbs
  • Salt and cracked black pepper, to taste
  • 700g potatoes, peeled and chopped
  • ½ cup milk
  • 30g butter
  • ½ cup grated cheese

Make it your way

You can use almost any unflavoured protein product in this recipe. Unflavoured collagen is one of the easiest options because it dissolves smoothly into the filling, but unflavoured whey, casein or plant-based protein can also work. If using a protein powder that tends to thicken, mix it with a little cool stock first and add it gradually over low heat.

Method

1. Prepare the potatoes.
Add the chopped potatoes to a saucepan of salted water and boil until tender.

2. Make the mash.
Drain the potatoes, then mash with the milk and butter until smooth and creamy. Season with salt and pepper and set aside.

3. Cook the beef.
Heat a large frying pan over medium-high heat. Add the beef mince, onion and carrot and cook until the beef is browned and the vegetables have softened.

4. Build the filling.
Stir through the tomato paste, Worcestershire sauce and mixed herbs. Pour in the beef stock and simmer until the mixture begins to thicken.

5. Add your protein.
Reduce the heat to low. Stir through the unflavoured collagen until completely combined. If using another unflavoured protein powder, mix it with a small amount of cool stock first before gradually stirring it into the mince mixture.

6. Add the vegetables.
Stir through the frozen peas and season the filling with salt and cracked black pepper.

7. Assemble.
Transfer the beef mixture to a baking dish and spread it into an even layer. Spoon the mashed potato over the top and gently spread it to the edges.

8. Finish with cheese.
Sprinkle the grated cheese over the mashed potato.

9. Bake.
Bake at 200°C for approximately 20 minutes, or until the top is golden and the filling is bubbling around the edges.

Protein tip

Adding protein to savoury meals doesn’t have to mean changing the recipe completely. Neutral, unflavoured protein products can often be stirred into sauces, soups, stews, mince dishes and other moisture-rich meals for an easy protein boost.

Comfort food, upgraded.

Serve it straight from the oven for an easy weeknight dinner, or portion it up for a few days of seriously satisfying meal prep.

Can you cook with collagen powder?

Yes. Collagen powder can be added to many cooked recipes, including soups, sauces, stews and mince-based meals. For this cottage pie, stir it through the filling before assembling the dish.

Is cottage pie good for meal prep?

Yes. Cottage pie is a convenient meal-prep dinner because it can be prepared in advance, portioned easily and reheated throughout the week.

Can you freeze high-protein cottage pie?

Yes. Allow the cottage pie to cool completely, divide it into freezer-safe portions and freeze for later. Defrost safely and reheat thoroughly before serving.

Can you add collagen powder to cottage pie?

Yes. Unflavoured collagen powder can be mixed into the beef filling of cottage pie without noticeably changing the flavour, making it an easy way to add collagen to a savoury meal.

What are the best savoury recipes to add collagen powder to?

Collagen works particularly well in savoury recipes with plenty of moisture, such as cottage pie, pasta sauces, soups, curries, casseroles and stews.

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