Deluxe Mashed Potato Bake

Deluxe Mashed Potato Bake

Twice baked potato side dish loaded with all the tasty extras!
4.67 from 3 votes
Prep Time 30 minutes
Cook Time 2 hours
Total Time 2 hours 30 minutes
Course Side Dish, Vegetables
Cuisine Potato, Side Dish
Servings 5 as side dish

Equipment

  • Saucepan for boiling potatoes
  • Small fry pan
  • 4L Slow Cooker

Ingredients
 

  • 1 kg peeled potatoes – I used brushed potatoes
  • Salt to season
  • 2 tbsp butter
  • 1/2 cup milk
  • 1 small brown onion, fine diced
  • 300 gram Diced bacon
  • 1 tsp Garlic powder
  • 1 tsp dried chopped chives (or 2 tsp fresh)
  • 1 cup sliced green onions/shallots
  • 1.5 cups Grated cheese – I use pizza blend

Instructions
 

  • I prepare the mashed potatoes in the morning and set aside in the fridge until a few hours before dinner.
  • On stovetop add chopped potatoes and pinch of salt to large pot of water, bring to boil and cook until tender.
  • While potatoes are cooking, add onion and bacon to frypan and cook on high heat for 5-10mins until onion softened and bacon browned. Set aside.
  • Drain potatoes and add milk and butter and mash/whip until smooth.
  • Add bacon and cheese to mashed potato. Add in garlic powder and chives and mix to combine. Cover and place in fridge until cooking time.
  • Spray slow cooker bowl with non stick spray (or you may prefer to line with baking paper)
  • To the mashed potato, stir in 1 cup of cheese. Reserve 1/2 cup for later.
    Stir in the green onions – but reserve 1-2 tbsp for later.
  • Add mashed potato mix to slow cooker and cook on low for 2hrs or until piping hot throughout. Cook with Tea Towel Trick.
    In final 15mins of cooking time I scatter top of the bake with the remaining cheese to melt and green onions to garnish.
  • Serve immediately as a tasty side dish.
    We served ours with BBQ steaks and steamed broccoli, peas and beans.
Keyword Mashed potato, Potato bake
Paulene @ Slow Cooker Central

About the Author: Paulene @ Slow Cooker Central

6 Comments

  1. Kerin Read July 13, 2025

    5 stars
    This recipe is super easy to make and tasted delicious. Thankyou so very much Pauline.

    1. Paulene @ Slow Cooker Central July 14, 2025

      So happy you loved it too Kerin! Thanks for the great 5 star rating too 🙂

  2. Sally Pegg June 25, 2026

    4 stars
    I halved this for the 1.5 ltr and used it alongside Beef Stroganoff

    1. Paulene @ Slow Cooker Central June 26, 2026

      What alterations did you make Sally? Did you just halve everything? Did you change the time etc? 🙂

4.67 from 3 votes

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