Preheat the oven to 350 degrees. Start by cutting up all your veggies into roughly the same sized pieces. Place all the veggies in a bowl and add the olive oil, minced garlic, and lemon juice. Toss the vegetables until they are all covered with the oil and juice. Spread the vegetables on a baking sheet with the salmon at one end and the veggies at the other. Bake for 30 minutes and enjoy!