Salmon and Summer Veggies in Foil

(5 - 6 oz) skinless salmon fillets

small zucchini ((13 oz) sliced into half moons)

small yellow squash ((13 oz) sliced into half moons)

shallots (, 1 thinly sliced and 1 chopped (there are usually two in a whole shallot))

garlic (, minced)

olive oil (, divided)

Salt and freshly ground black pepper

fresh lemon juice

large Roma tomatoes (, diced)

chopped fresh thyme ((or 1 tsp dried))

dried oregano

dried marjoram