Line 8 1/2 x 4 1/2 inch loaf pan with plastic wrap, overlapping sides.
For Red Pepper Layer
Combine red peppers and feta cheese in food processor; blend until smooth. Spread pepper mixture evenly on bottom of prepared pan.
For Bean Layer
Mash beans in large bowl. Add lemon juice, 1 tablespoon olive oil, oregano, and minced garlic cloves. Season with salt and pepper to taste. Spread bean mixture over red pepper layer in prepared dish.
For Pesto Layer
In the food processor, process garlic cloves, basil, parsley and pine nuts. With machine running, gradually add 3 tablespoons olive oil. Mix in ricotta, spread pesto evenly over bean layer in prepared pan. Cover with plastic wrap and refrigerate overnight. To unmold, invert pate onto serving platter. Peel off plastic wrap from pate. Serve with sourdough slices or breadsticks.