Slow Cooker Cheesy Mushroom Potatoes - cooking recipe

Ingredients

2 tablespoons olive oil
1 teaspoon butter
1/2 pound white mushrooms, sliced
5 large Yukon Gold potatoes, quartered and sliced
4 cups shredded Cheddar cheese
1/2 cup milk
1/4 cup minced onion
2 tablespoons butter
1 tablespoon garlic salt
1/4 teaspoon ground black pepper

Preparation

Heat olive oil and 1 teaspoon butter in a skillet over medium heat. Cook and stir mushrooms in butter until tender and browned, about 10 minutes.
Stir cooked mushrooms, potatoes, Cheddar cheese, milk, onion, 2 tablespoons butter, garlic salt, and black pepper together in a slow cooker.
Cook on High until potatoes are tender and Cheddar cheese is melted, about 4 hours.