Prep the Oven and Pans: Preheat your oven to 425°F (220°C). Lightly coat two large baking sheets with cooking spray. 2.
Roll Out the Dough: Lightly dust a clean work surface with flour.
Divide the pizza dough in half.
Roll one half of the dough into a thin rectangle, roughly the size of your baking sheet. Carefully transfer it to one of the prepared sheets.
Repeat with the remaining dough and the second baking sheet. 3. Create the Creamy Base: In a small bowl, mix the spreadable cheese with 2 tablespoons (30 ml / 1 fl oz) of water until it reaches a smooth, easily spreadable consistency. 4. Assemble the Tartes: Divide the cheese mixture evenly between the two dough crusts, spreading it almost to the edges.
Sprinkle each tarte with half of the sliced shallots and half of the cooked lentils. 5.
Bake to Perfection: Bake for 15 to 18 minutes, or until the crust is crisp and golden brown around the edges.
Let the tartes cool on the baking sheets for 5 minutes before slicing and serving.