Preheat your oven to 350 degrees.
In a mixing bowl, combine the pistachios, sunflower seeds and chia seeds.
Add the olive oil and stir until distributed (it's just a small amount as you do not want the seeds too wet, they'll come out of the oven that way. I often use an olive oil cooking spray instead).
Place a sheet of parchment paper on a baking sheet (makes cleanup a breeze). Spread seeds out in a thin layer.
Bake for 20 minutes, stir them around on the sheet halfway through for better coverage (time may vary per your oven, I also like mine dark so I go for 24 minutes).
Let cool, then place in an airtight container. One serving is 52 grams, just under 2 ounces.
Serving Size 52 grams
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.