Emily's Strawberry Balsamic Salad

¼ cup balsamic vinegar

1 ½ tablespoons Dijon mustard

1 tablespoon honey

1 small shallot

peeled and chopped

2 small cloves garlic

peeled

½ teaspoon salt

¼ teaspoon ground black pepper

½ cup olive oil

1 head red lettuce leaves

rinsed

dried

and torn

½ small red onion

peeled

cut into 1/2-inch-wide slivers

¼ cup sliced almonds

lightly toasted

1 pint fresh strawberries

rinsed and sliced

½ cup crumbled feta cheese