Dave with Food Network Kitchens shares how to eat an artichoke. He recommends buying fresh artichoke over canned or frozen. To prepare the artichoke, he uses a serrated knife to slice through it a quarter of the way in from the top. Pulling a leaf out of the artichoke, Dave dips it in hot melted butter before scraping it with his teeth to eat the meat off the leaf. He starts peeling away to reach the center, which is furry and soft. Dave uses a spoon to scrape away the furry part before cutting the artichoke down the middle and shares that his favorite way to cook it is grilled with lemon before taking a bite.
Heat the oil in a medium saute pan over medium heat. Add the artichokes, spinach, chopped garlic and 1 teaspoon of the lemon juice and saute until the spinach begins to wilt and the garlic becomes fragrant, 5 to 7 minutes. Remove from the heat and transfer to a food processor. Add the Parmigiano-Reggiano, feta, parsley and the remaining 2 tablespoons lemon juice and pulse until smooth. Add the kosher salt and season to taste with pepper.
In a small bowl, combine the sea salt flakes and lime zest with your fingers. Set aside.
Rub the remaining whole garlic clove onto one side of each slice of bread. Divide the artichoke mixture equally among the slices, place on a platter and serve; or, spoon into a serving bowl and serve with the bread slices on the side. Garnish with the radishes and lime salt.