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1
Special equipment: parchment paper
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2
Preheat the oven to 400 degrees F. Line 2 baking sheets with parchment paper and coat with nonstick cooking spray.
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3
Combine the oil, garlic, oregano and pepper flakes in a small bowl.
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4
Arrange the polenta, tomato and onion slices on the prepared baking sheets.
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5
Brush the tops of the polenta and vegetables with the herbed oil.
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6
Sprinkle the vegetables with 1/4 teaspoon salt and a few grinds of pepper.
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7
Roast until the vegetables are soft and beginning to caramelize, about 25 minutes.
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8
Gently combine the ground beef with 1/2 teaspoon salt and a few grinds of pepper in a medium bowl.
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9
Shape into 8 patties about 2 1/2 inches across and 1/2 inch thick.
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10
Spray both sides with nonstick cooking spray.
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11
Heat a large nonstick skillet on high for two minutes and arrange the patties in the skillet spaced evenly apart.
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12
Reduce to medium high and cook for about 1 1/2 minutes per side for medium-rare.
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13
Allow patties to rest for 5 minutes before assembling sliders.
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14
Assemble the sliders: On a work surface, place 8 polenta rounds herb-side down and top with 3 basil leaves, slightly overlapped on each.
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15
Top basil with a patty, tomato and onion slices.
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16
Sandwich with the remaining polenta rounds, herb-side up, and serve 2 sliders per person.