
Potatoes O'Brien transforms humble spuds into a vibrant, flavor-packed side dish by combining perfectly crispy diced potatoes with colorful bell peppers and sweet onions. This classic American dish delivers maximum flavor with minimal ingredients and effort, offering satisfying texture contrasts that complement almost any meal.
I discovered this recipe in my grandmother's handwritten cookbook as "a dependable side that never disappoints." After countless preparations, I understand why it earned this distinction - it's become my go-to side dish that reliably impresses guests while being simple enough for everyday meals.
Essential Ingredients
Russet potatoes: High starch content for perfect crispiness. Bell peppers: Red and green for color and flavor contrast. Yellow onion: Adds aromatic sweetness when caramelized. Butter and olive oil: Combined cooking medium for flavor and browning. Garlic powder: Subtle aromatic enhancement. Fresh parsley: Bright finishing touch.
The combination of butter and olive oil creates the perfect cooking medium - butter provides unmatched flavor while oil prevents burning and helps achieve that ideal crispy exterior on the potatoes.
Preparation Method
- Potato Preparation:
- Peel and dice potatoes uniformly. Rinse to remove excess starch, then thoroughly pat dry for maximum crispiness.
- Pan Technique:
- Heat butter and oil in heavy skillet until foaming subsides. Add potatoes in single layer without overcrowding.
- Cooking Process:
- Cook undisturbed to develop golden crust before flipping. Add peppers and onions after potatoes are partially browned.
- Finishing:
- Season with salt, pepper, and garlic powder. Garnish with fresh parsley before serving.

My grandmother always insisted patience is the secret ingredient - allowing potatoes to develop a golden crust without constant stirring creates the perfect texture contrast between crispy exterior and fluffy interior.
Serving Suggestions
Serve alongside eggs for breakfast, with frittatas for brunch, or paired with grilled meats for dinner. Consider a breakfast bar setup with toppings like bacon, cheese, and sour cream for interactive serving.
Creative Variations
Southwestern version: Add corn and black beans, finish with cilantro and lime. Mediterranean twist: Incorporate zucchini and feta cheese. Breakfast hash: Mix in cooked sausage and bake with eggs. Loaded version: Top with sour cream, green onions, and cheddar.
Storage Success
Best enjoyed fresh. Store leftovers airtight in refrigerator up to 3 days. Reheat in skillet (not microwave) to restore crispiness. For meal prep, partially cook potatoes and store separately from prepped vegetables.

The enduring appeal of Potatoes O'Brien lies in transforming humble ingredients into something special through proper technique. These golden, crispy potatoes deliver comfort and satisfaction in every bite, whether served for breakfast, brunch, or dinner.
Frequently Asked Questions
- → Can I use other potato varieties?
- Yukon golds work best, but red potatoes or russets will also work (adjust boiling time accordingly).
- → How do I make them extra crispy?
- Don't stir too often - let them develop a crust before turning.
- → Can I make these ahead?
- Best served fresh, but you can parboil potatoes in advance to save time.
- → What to serve with them?
- Perfect with eggs for breakfast or alongside roasted meats for dinner.
- → How to store leftovers?
- Refrigerate for 2-3 days and reheat in a skillet to restore crispness.