Luke 22:15  KJV  "And he said unto them, With desire I have desired to eat this passover with you before I suffer:"

Interpretation based on the following study:  So then too indeed, to teach and shew forth, enlighten and kindle, bringing forth in nearness, to go before us.  Longing earnestly with fervent passion and deep desire, devoted and consecrated to be personally involved as the Sacrifice.  For this cause, Christ Himself by substitution and representation, bore the result to cover our sins.  Performing to finish and end, bringing to completion to join us in a relationship of close bond to Himself.  He is Chief, Head and Leader.  One Superior to us, instituted by God to shine forth, exempting us by His Substitution, to become Sacrifice, given up and over, as the Redemption Price.

Greek:  kai eipen pros autous epithumia epethumesa touto to pascha phagein meth humon pro tou me pathein

Definitions/Greek Strong's numbers:

2532-kai:  and, also, even, so then too, both, indeed, moreover, therefore

2036-epo:  to speak or say by word or writing, tell, command, appoint, ordain, bid, answer, bring word, call, grant, utter, pour out forth, shew forth, point out, teach, instruct, direct, Word, to flow, water, rain, to lay forth, relate in words, break silence, describe, name, put forth, bringing together of words, ask, inquiry, desire, beg, require, crave, call for, cry after, seek, search for, request, cry out after, discern, judge, determine, distinguish, make known, ascertain, enquire, declare, unfold in teaching, ask after, beseech, pray, intreat, requires an open heart to receive the message, grasp, get hold of, understand, to teach, to learn, need, enlighten, bring light, brighten, kindle, ignite, glow, shine forth, refine, be on fire, burn, mark, own, occupy, possess

4314-pros:  of direction, forward to, toward, the side of, pertaining to, by the side of, near to, destination of relation, whither, for which, unto, to, with, to you-ward, motion toward, accession to, nearness at, in front of, prior, before, above, to lead forward, precede, bring forth, bring out

846-autos:  self, alone, mine own, self same, this, -selves

1939-epithumia:  longing, desire, to set the heart upon, long for, to fix the desire upon, seek after for earnestly, diligent inquiry, to require, need, desire earnestly, fervent with deep devotion, to be fierce and passionate about, to be hot and heavy after with passion, to be stirred toward, to care deeply about, to be concerned at, to be personally involved in, to sacrifice for, to be driven at, to be given over to, to be devoted, to focus and be occupied with, to offer toward, to breathe hard about, to burn toward, to be owned and possessed by, to belong to and be occupied by, complete commitment

1937-epithumeo:  longing, desire, to set the heart upon, long for, to fix the desire upon, seek after for earnestly, diligent inquiry, to require, need, desire earnestly, to be fierce and passionate about, to be hot and heavy after with passion, to be stirred toward, to care deeply about, to be concerned at, to be personally involved in, to sacrifice for, to be driven at, to be given over to, to be devoted, to focus and be occupied with, to offer toward, to breathe hard about, to burn toward, to be owned and possessed by, to belong to and be occupied by

5124-touto:  that, this, therefore, for this cause, wherefore, hereunto, selfsame, thus, the same, these, for in, with, by, such, these things, those, that is, from or concerning this same, hereby, in such manner, he, she, they, he it was that, who

3588-to:  the, which, who, the things, the Son, this, that, one, he

3957-paskah:  Passover, to pass over to spare, feast instituted by God commemorating the deliverance of Israel from Egypt and the anticipatory of expiatory sacrifice of Christ, Christ Himself, Easter, East, to shine, to dawn, spring forth, resurrection, to hop, skip over, spare, to hesitate, to dance, halt, limp, leap, pretermission, exemption, by substitution or representation

5315-phago:  to eat, meat, to live, to consume, devour, end, result, experience, fruit, price, offspring, works, labor, deeds, ways, grow, reward, earnings, develop, bring forth fruit, produce, feed, destroy, bear the results, waste away, taken into one's being, swallow, make away with, covered, engulf, gulp, absorb, drink, to end, completion, cease, perform finish, come to an end, made perfect, held, porous, fully developed, mature, ripe

3326-meta:  denoting accompaniment amid, association, succession, joined, occupying, owned, possessed, closely bound, with, after, among, next to, follow together, relations of participation and proximity, transfer, transmute

5216-humon:  of, from or concerning you, your, yours, ye, you, yourselves, youward, your own, for your sakes

4253-pro:  fore, in front of, prior, superior to, before, above, priority, precedence, chief, head, leader

3588-to:  the, which, who, the things, the Son, this, that, one, he

3165-me:  me, my, myself

3958-pasko:  to pass over to spare, feast instituted by God commemorating the deliverance of Israel from Egypt and the anticipatory of expiatory sacrifice of Christ, Christ Himself, Easter, East, to shine, to dawn, spring forth, resurrection, to hop, skip over, spare, to hesitate, to dance, halt, limp, leap, pretermission, exemption, by substitution or representation, to become the sacrifice for, to feel and experience, to be impressed with, that which is given up and over as the redemption price, to fully satisfy, to be devoted and given over to, to burn after for, to be occupied with and consecrated to

Definitions derived from:  The New Strong's Expanded Exhaustive Concordance of the Bible, red letter edition, Hebrew & Greek Dictionary, 2010 edition.  CWP Teacher edition Interlinear Bible.