Preheat oven to 350 degrees F (175 degrees C).
Place potatoes into a large pot, cover with water, and bring to a boil. Cook potatoes until tender and still firm, about 15 minutes; drain and set aside to cool.
Melt butter in a saucepan over medium heat; cook and stir green onion in the hot butter until softened, 1 to 2 minutes. Whisk flour into green onion and butter; gradually stir in milk, whisking constantly, until mixture is thickened and bubbly. Stir salt and Cheddar cheese into sauce, mixing until cheese has melted.
Slice potatoes and place about half the potatoes into the bottom of a casserole dish; sprinkle with salt and black pepper. Layer half the spinach and half the pimentos over potatoes and pour half the cheese sauce over the spinach. Repeat layers, ending with remaining cheese sauce. Cover casserole dish tightly with aluminum foil.
Bake in the preheated oven until bubbling, about 50 minutes; uncover dish and continue baking until browned on top, 5 to 10 more minutes. Sprinkle with crumbled bacon.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	388.37 Kcal (1626 kJ)
Calories from fat	186.43 Kcal
		% Daily Value*
Total Fat	20.71g	32%
Cholesterol	67.69mg	23%
Sodium	1392.65mg	58%
Potassium	965.04mg	21%
Total Carbs	30.17g	10%
Sugars	4.85g	19%
Dietary Fiber	3.62g	14%
Protein	21.66g	43%
Vitamin C	13.4mg	22%
Vitamin A	0.2mg	8%
Iron	2.8mg	16%
Calcium	225.7mg	23%

Amount Per 100 g
Calories	137.68 Kcal (576 kJ)
Calories from fat	66.09 Kcal
		% Daily Value*
Total Fat	7.34g	32%
Cholesterol	23.99mg	23%
Sodium	493.68mg	58%
Potassium	342.1mg	21%
Total Carbs	10.69g	10%
Sugars	1.72g	19%
Dietary Fiber	1.28g	14%
Protein	7.68g	43%
Vitamin C	4.8mg	22%
Vitamin A	0.1mg	8%
Iron	1mg	16%
Calcium	80mg	23%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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