Preheat oven to 350 degrees.
Make pistachios. Melt butter with honey in the microwave. Add pistachios, smoked paprika, and salt to the honey butter, mixing well to coat. Line a baking sheet with parchment paper and spread the pistachios on the baking sheet. Bake for 10-12 minutes or until golden brown, stirring once halfway through. Remove from the oven and transfer the pistachios onto clean parchment paper. Let cool completely then chop the pistachios.
Increase oven to 425 degrees F.
Toss the brussels sprouts with oil, salt, pepper, and minced garlic. Roast the sprouts for 10 minutes. Flip the sprouts over and cook another 5-10 minutes or until tender and lightly charred. Remove from heat and toss with the lemon zest and juice. Keep warm.
Brush the slices of bread with olive oil and toast in the oven for 5-7 minutes or until golden brown. Top each slice with burrata, brussels sprouts, chopped dates, and spiced chopped pistachios. Sprinkle flaky sea salt on top and finish with a drizzle of olive oil. Serve warm.