Warm a medium saute pan over medium heat with 1 TBSP of the olive oil. Add in the minced shallot, and cook for 2 minutes. Add in the spinach and cook until wilted. Add in the tomato and artichoke pieces and salt + pepper, and toss to combine. Remove the pan from heat, and allow it to slightly cool.

While the veggies are cooling, preheat oven to 350 degrees. Cut the baguette into 24 slices and place on a large baking sheet. Brush the tops of the bread with remaining olive oil.

Add the grated parmesan cheese into the veggie pan, and toss to combine.

Spoon the veggie mixture onto the baguette slices. Carefully sprinkle the mozzarella cheese on top of each pizza bite.

Bake until the cheese is melted and the baguette slices are lightly browned, around 10 minutes. Remove from oven, and drizzle the pizza bites with balsamic glaze. Serve immediately.