Sausage with onion gravy with green peas on a plate.

Bangers and Mash (Sausage with Onion Gravy over Mashed Potatoes)

Quick and easy Irish sausage with onion gravy served over mashed potatoes. Pure comfort food for Saint Patrick's Day!

Course Dinner
Cuisine Irish
Keyword bangers and mash, sausage with onion gravy
Prep Time 5 minutes
Cook Time 15 minutes
Total Time 20 minutes
Servings 4 servings
Calories 555 kcal
Author Anna


  • 1 lb russet or red potatoes
  • 1 tablespoon butter
  • 2 tablespoons sour cream
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 4 pork sausages I used Irish bangers
  • 1 tablespoon olive oil
  • 1 tablespoon butter
  • 1 medium yellow onion
  • 1 teaspoon minced garlic
  • 1.25 cups beef stock
  • 1 tablespoon cornstarch See note
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
US Customary - Metric


  1. Start by making mashed potatoes. Use your preferred method. I use my Instant Pot Mashed Potatoes recipe. Add butter and sour cream and mash well. Season with salt and pepper.
  2. Slice the onion. Measure out beef stock and whisk it with cornstarch.
  3. In a skillet, heat up olive oil. Brown sausages on each side. Remove from pan.
  4. Add butter to the same skillet. Add onion and garlic. Saute until fragrant and nicely brown. Add beef stock and cornstarch mixture. Simmer until thickened into a sauce. Season with salt and pepper. Add sausages back to the gravy and heat it all up together.
  5. Serve sausages with gravy on a bed of mashed potatoes and a side of green peas.
Nutrition Facts
Bangers and Mash (Sausage with Onion Gravy over Mashed Potatoes)
Amount Per Serving (1 sausage)
Calories 555 Calories from Fat 360
% Daily Value*
Fat 40g62%
Saturated Fat 14g88%
Cholesterol 99mg33%
Sodium 1510mg66%
Potassium 932mg27%
Carbohydrates 26g9%
Fiber 1g4%
Sugar 2g2%
Protein 21g42%
Vitamin A 295IU6%
Vitamin C 9.5mg12%
Calcium 44mg4%
Iron 2.5mg14%
* Percent Daily Values are based on a 2000 calorie diet.