Creating Sheetpan Salmon & Potatoes with Veggies is straightforward. Follow these steps to ensure a delicious outcome:

1. Preheat Oven: Preheat your oven to 400°F (200°C).
2. Prepare the Sheetpan: Line a large baking sheet with parchment paper for easy cleanup.
3. Prepare the Potatoes: In a large bowl, toss the halved baby potatoes with 2 tablespoons of olive oil, half of the rosemary, salt, and pepper. Spread them evenly on one side of the prepared sheetpan.
4. Bake the Potatoes: Place the potatoes in the preheated oven and bake for 15 minutes to start cooking them.
5. Prepare the Vegetables: In the same bowl, combine the mixed vegetables with the remaining olive oil, garlic, and the other half of the rosemary. Season with salt and pepper.
6. Add Salmon: After the potatoes have baked for 15 minutes, remove the sheetpan from the oven. Push the potatoes to one side and place the salmon fillets on the other side.
7. Season Salmon: Squeeze lemon juice over the salmon fillets and season with salt and pepper.
8. Add Veggies: Spread the mixed vegetables around the salmon on the sheetpan.
9. Bake Everything Together: Return the sheetpan to the oven and bake for an additional 12-15 minutes or until the salmon flakes easily with a fork and the vegetables are tender.
10. Serve and Garnish: Once cooked, take the sheetpan out of the oven. Serve immediately, garnishing with lemon wedges if desired.

These steps will guide you in preparing this incredible dish seamlessly, making it a hit at your dining table!