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1
Preheat oven to 400 degrees F.
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2
Place the potatoes and garlic cloves in a large pot of salted water.
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3
Bring to a boil and cook until the potatoes are fork tender.
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4
Drain and add the potatoes and garlic back into the pot.
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5
Add the butter and milk and mash with a masher or a hand mixer.
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6
Keep the mashed potatoes a little bit chunky, not perfectly smooth.
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7
Season the potato mixture with salt and pepper, to taste.
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8
Heat 1 tablespoon olive oil in a skillet over medium heat.
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9
Add the onions and cook until browned, about 6 minutes.
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10
Stir in the anchovies and cook for 2 more minutes, until anchovies 'melt' into the onions.
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11
Remove the onions from the pan and add in the sausage.
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12
Cook the sausage until browned and cooked through, about 6 to 8 minutes.
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13
Slice the sausage into thin rounds.
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14
On a lightly-floured surface, using a lightly-floured rolling pin, roll out the pizza dough into a 1/4-inch thick round.
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15
Transfer the dough to a parchment-lined baking sheet and bake in the oven for 10 minutes.
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16
Top the pizza crust with the onions.
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17
Spread the mashed potatoes over the onions and top with sausage slices and Cheddar cheese.
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18
Bake in the oven for 20 minutes.
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19
Slice and divide between 2 plates.
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20
Serve with the arugula salad on the side.
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21
To make the arugula salad: whisk together the lemon juice, olive oil and salt, and pepper, to taste.
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22
Toss the arugula, fennel, and celery in the dressing.
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23
Divide the salad between 2 plates and top with shaved Parmesan.
